Home / 724,474.60-1,086,711.90-455,036.20

Finding the Fourth Proportional to 724,474.60, 1,086,711.90 and 455,036.20

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Solution

The fourth proportional to 724,474.60, 1,086,711.90 and 455,036.20 is: 682,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,474.60 : 1,086,711.90 = 455,036.20 : x
  2. Step 2: Convert to fraction form
    724,474.60/1,086,711.90 = 455,036.20/x
  3. Step 3: Cross multiply
    724,474.60x = 1,086,711.90 × 455,036.20
  4. Step 4: Simplify right side
    724,474.60x = 494,493,253,470.78
  5. Step 5: Solve for x
    x = 494,493,253,470.78/724,474.60
  6. Step 6: Final answer
    x = 682,554.30

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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.