Finding the Fourth Proportional to 660,545.41, 990,812.82 and 392,530.99
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Solution
The fourth proportional to 660,545.41, 990,812.82 and 392,530.99 is: 588,793.34
Step by Step Solution
- Step 1: Write the proportion equation
660,545.41 : 990,812.82 = 392,530.99 : x - Step 2: Convert to fraction form
660,545.41/990,812.82 = 392,530.99/x - Step 3: Cross multiply
660,545.41x = 990,812.82 × 392,530.99 - Step 4: Simplify right side
660,545.41x = 388,924,737,139.29 - Step 5: Solve for x
x = 388,924,737,139.29/660,545.41 - Step 6: Final answer
x = 588,793.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.