Finding the Fourth Proportional to 757,711.72, 1,136,780.81 and 331,284.99
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Solution
The fourth proportional to 757,711.72, 1,136,780.81 and 331,284.99 is: 497,020.71
Step by Step Solution
- Step 1: Write the proportion equation
757,711.72 : 1,136,780.81 = 331,284.99 : x - Step 2: Convert to fraction form
757,711.72/1,136,780.81 = 331,284.99/x - Step 3: Cross multiply
757,711.72x = 1,136,780.81 × 331,284.99 - Step 4: Simplify right side
757,711.72x = 376,598,419,273.04 - Step 5: Solve for x
x = 376,598,419,273.04/757,711.72 - Step 6: Final answer
x = 497,020.71
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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.