Finding the Fourth Proportional to 721,471.80, 995,565.58 and 415,466.68
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Solution
The fourth proportional to 721,471.80, 995,565.58 and 415,466.68 is: 573,306.30
Step by Step Solution
- Step 1: Write the proportion equation
721,471.80 : 995,565.58 = 415,466.68 : x - Step 2: Convert to fraction form
721,471.80/995,565.58 = 415,466.68/x - Step 3: Cross multiply
721,471.80x = 995,565.58 × 415,466.68 - Step 4: Simplify right side
721,471.80x = 413,624,326,244.87 - Step 5: Solve for x
x = 413,624,326,244.87/721,471.80 - Step 6: Final answer
x = 573,306.30
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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.