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Finding the Fourth Proportional to 393,500.34, 541,717.17 and 375,423.57

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Solution

The fourth proportional to 393,500.34, 541,717.17 and 375,423.57 is: 516,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,500.34 : 541,717.17 = 375,423.57 : x
  2. Step 2: Convert to fraction form
    393,500.34/541,717.17 = 375,423.57/x
  3. Step 3: Cross multiply
    393,500.34x = 541,717.17 × 375,423.57
  4. Step 4: Simplify right side
    393,500.34x = 203,373,393,891.70
  5. Step 5: Solve for x
    x = 203,373,393,891.70/393,500.34
  6. Step 6: Final answer
    x = 516,831.56

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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.