Home / 725,517.70-1,088,276.55-458,412.10

Finding the Fourth Proportional to 725,517.70, 1,088,276.55 and 458,412.10

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Solution

The fourth proportional to 725,517.70, 1,088,276.55 and 458,412.10 is: 687,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,517.70 : 1,088,276.55 = 458,412.10 : x
  2. Step 2: Convert to fraction form
    725,517.70/1,088,276.55 = 458,412.10/x
  3. Step 3: Cross multiply
    725,517.70x = 1,088,276.55 × 458,412.10
  4. Step 4: Simplify right side
    725,517.70x = 498,879,138,666.26
  5. Step 5: Solve for x
    x = 498,879,138,666.26/725,517.70
  6. Step 6: Final answer
    x = 687,618.15

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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.