Home / 527,708.40-727,839.12-331,531.92

Finding the Fourth Proportional to 527,708.40, 727,839.12 and 331,531.92

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Solution

The fourth proportional to 527,708.40, 727,839.12 and 331,531.92 is: 457,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,708.40 : 727,839.12 = 331,531.92 : x
  2. Step 2: Convert to fraction form
    527,708.40/727,839.12 = 331,531.92/x
  3. Step 3: Cross multiply
    527,708.40x = 727,839.12 × 331,531.92
  4. Step 4: Simplify right side
    527,708.40x = 241,301,900,904.71
  5. Step 5: Solve for x
    x = 241,301,900,904.71/527,708.40
  6. Step 6: Final answer
    x = 457,263.71

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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.