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Finding the Fourth Proportional to 482,951.80, 724,395.30 and 127,958.20

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Solution

The fourth proportional to 482,951.80, 724,395.30 and 127,958.20 is: 191,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,951.80 : 724,395.30 = 127,958.20 : x
  2. Step 2: Convert to fraction form
    482,951.80/724,395.30 = 127,958.20/x
  3. Step 3: Cross multiply
    482,951.80x = 724,395.30 × 127,958.20
  4. Step 4: Simplify right side
    482,951.80x = 92,692,318,676.46
  5. Step 5: Solve for x
    x = 92,692,318,676.46/482,951.80
  6. Step 6: Final answer
    x = 191,928.72

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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.