Home / 724,446.90-1,086,670.35-458,507.70

Finding the Fourth Proportional to 724,446.90, 1,086,670.35 and 458,507.70

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Solution

The fourth proportional to 724,446.90, 1,086,670.35 and 458,507.70 is: 687,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,446.90 : 1,086,670.35 = 458,507.70 : x
  2. Step 2: Convert to fraction form
    724,446.90/1,086,670.35 = 458,507.70/x
  3. Step 3: Cross multiply
    724,446.90x = 1,086,670.35 × 458,507.70
  4. Step 4: Simplify right side
    724,446.90x = 498,246,722,836.70
  5. Step 5: Solve for x
    x = 498,246,722,836.70/724,446.90
  6. Step 6: Final answer
    x = 687,761.55

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Double scale
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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.