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Finding the Fourth Proportional to 527,350.96, 727,739.94 and 285,627.88

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Solution

The fourth proportional to 527,350.96, 727,739.94 and 285,627.88 is: 394,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,350.96 : 727,739.94 = 285,627.88 : x
  2. Step 2: Convert to fraction form
    527,350.96/727,739.94 = 285,627.88/x
  3. Step 3: Cross multiply
    527,350.96x = 727,739.94 × 285,627.88
  4. Step 4: Simplify right side
    527,350.96x = 207,862,816,253.53
  5. Step 5: Solve for x
    x = 207,862,816,253.53/527,350.96
  6. Step 6: Final answer
    x = 394,164.10

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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.