Finding the Fourth Proportional to 721,472.80, 995,566.96 and 415,467.68
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Solution
The fourth proportional to 721,472.80, 995,566.96 and 415,467.68 is: 573,307.68
Step by Step Solution
- Step 1: Write the proportion equation
721,472.80 : 995,566.96 = 415,467.68 : x - Step 2: Convert to fraction form
721,472.80/995,566.96 = 415,467.68/x - Step 3: Cross multiply
721,472.80x = 995,566.96 × 415,467.68 - Step 4: Simplify right side
721,472.80x = 413,625,895,155.85 - Step 5: Solve for x
x = 413,625,895,155.85/721,472.80 - Step 6: Final answer
x = 573,307.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.