Home / 725,515.70-1,088,273.55-458,410.10

Finding the Fourth Proportional to 725,515.70, 1,088,273.55 and 458,410.10

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Solution

The fourth proportional to 725,515.70, 1,088,273.55 and 458,410.10 is: 687,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,515.70 : 1,088,273.55 = 458,410.10 : x
  2. Step 2: Convert to fraction form
    725,515.70/1,088,273.55 = 458,410.10/x
  3. Step 3: Cross multiply
    725,515.70x = 1,088,273.55 × 458,410.10
  4. Step 4: Simplify right side
    725,515.70x = 498,875,586,882.86
  5. Step 5: Solve for x
    x = 498,875,586,882.86/725,515.70
  6. Step 6: Final answer
    x = 687,615.15

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Double scale
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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.