Agreement and allotment are synonyms for proportion. Aggregate is the opposite of proportion. We have given below a collection of synonyms for "proportion".
A proportion is a relationship between two or more things, represented by a size, number, or amount. A task is divided among four people, each of whom has their own ratio of work. For example, you can measure the proportion of needy families in your neighborhood. The comparative relationship between parts, things, or elements with respect to size, quantity, degree, etc.