Finding the Fourth Proportional to 515,324.89, 711,149.18 and 285,882.19
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Solution
The fourth proportional to 515,324.89, 711,149.18 and 285,882.19 is: 394,517.88
Step by Step Solution
- Step 1: Write the proportion equation
515,324.89 : 711,149.18 = 285,882.19 : x - Step 2: Convert to fraction form
515,324.89/711,149.18 = 285,882.19/x - Step 3: Cross multiply
515,324.89x = 711,149.18 × 285,882.19 - Step 4: Simplify right side
515,324.89x = 203,304,882,154.06 - Step 5: Solve for x
x = 203,304,882,154.06/515,324.89 - Step 6: Final answer
x = 394,517.88
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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.