Proportional distribution method is to change the known integer ratio or fractional ratio into distribution according to the number of shares, and add all the items of this ratio to get the total number of shares. The proportion of each item in the total score is the share of each component in the total, from which each component can be obtained. There are three specific situations:
(1) When the distribution ratio is known, the total score quota should be specified; When the total amount is not the sum of several components, it needs to be calculated, converted and adjusted, and then distributed in proportion.
(2) When two of the three quantities are known to be compared in pairs, it is necessary to convert the number of copies of the intermediate quantity to the same number, convert the paired banknotes into the proportion of the three quantities, and then distribute them in proportion.
(3) When the ratio of the two quantities associated with the total amount is known, the ratio of the two associated quantities should be converted into component proportions according to the basic quantitative relationship, and then distributed in proportion.
When doing this kind of problem, first find the connection ratio, then find the number of copies corresponding to the known quantity in the problem, and find each number of copies to get the result.
When calculating the ratio of fractions, we can first find out the least common multiple of denominator, and then multiply each fraction by this least common multiple to turn fractions into integer ratios. When the denominator is the same, the ratio of molecules is the ratio after the fraction is simplified.
When the relationship between several numbers is known, the ratio of these numbers is calculated according to the equation, and then distributed in proportion.