Home / 482,905.90-724,358.85-127,974.70

Finding the Fourth Proportional to 482,905.90, 724,358.85 and 127,974.70

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Solution

The fourth proportional to 482,905.90, 724,358.85 and 127,974.70 is: 191,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,905.90 : 724,358.85 = 127,974.70 : x
  2. Step 2: Convert to fraction form
    482,905.90/724,358.85 = 127,974.70/x
  3. Step 3: Cross multiply
    482,905.90x = 724,358.85 × 127,974.70
  4. Step 4: Simplify right side
    482,905.90x = 92,699,606,521.10
  5. Step 5: Solve for x
    x = 92,699,606,521.10/482,905.90
  6. Step 6: Final answer
    x = 191,962.05

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Similar ratio
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1.5x scale

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.