Finding the Fourth Proportional to 514,780.74, 771,711.84 and 261,919.80
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Solution
The fourth proportional to 514,780.74, 771,711.84 and 261,919.80 is: 392,646.02
Step by Step Solution
- Step 1: Write the proportion equation
514,780.74 : 771,711.84 = 261,919.80 : x - Step 2: Convert to fraction form
514,780.74/771,711.84 = 261,919.80/x - Step 3: Cross multiply
514,780.74x = 771,711.84 × 261,919.80 - Step 4: Simplify right side
514,780.74x = 202,126,610,790.43 - Step 5: Solve for x
x = 202,126,610,790.43/514,780.74 - Step 6: Final answer
x = 392,646.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.