Finding the Fourth Proportional to 990,123.99, 1,484,948.17 and 457,132.92
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Solution
The fourth proportional to 990,123.99, 1,484,948.17 and 457,132.92 is: 685,589.58
Step by Step Solution
- Step 1: Write the proportion equation
990,123.99 : 1,484,948.17 = 457,132.92 : x - Step 2: Convert to fraction form
990,123.99/1,484,948.17 = 457,132.92/x - Step 3: Cross multiply
990,123.99x = 1,484,948.17 × 457,132.92 - Step 4: Simplify right side
990,123.99x = 678,818,693,000.76 - Step 5: Solve for x
x = 678,818,693,000.76/990,123.99 - Step 6: Final answer
x = 685,589.58
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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.