Home / 861,358.68-1,291,939.20-230,321.70

Finding the Fourth Proportional to 861,358.68, 1,291,939.20 and 230,321.70

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Solution

The fourth proportional to 861,358.68, 1,291,939.20 and 230,321.70 is: 345,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,358.68 : 1,291,939.20 = 230,321.70 : x
  2. Step 2: Convert to fraction form
    861,358.68/1,291,939.20 = 230,321.70/x
  3. Step 3: Cross multiply
    861,358.68x = 1,291,939.20 × 230,321.70
  4. Step 4: Simplify right side
    861,358.68x = 297,561,632,840.64
  5. Step 5: Solve for x
    x = 297,561,632,840.64/861,358.68
  6. Step 6: Final answer
    x = 345,456.13

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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.