Home / 725,152.20-1,087,728.30-458,046.60

Finding the Fourth Proportional to 725,152.20, 1,087,728.30 and 458,046.60

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Solution

The fourth proportional to 725,152.20, 1,087,728.30 and 458,046.60 is: 687,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,152.20 : 1,087,728.30 = 458,046.60 : x
  2. Step 2: Convert to fraction form
    725,152.20/1,087,728.30 = 458,046.60/x
  3. Step 3: Cross multiply
    725,152.20x = 1,087,728.30 × 458,046.60
  4. Step 4: Simplify right side
    725,152.20x = 498,230,249,538.78
  5. Step 5: Solve for x
    x = 498,230,249,538.78/725,152.20
  6. Step 6: Final answer
    x = 687,069.90

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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.