Home / 862,227.20-1,292,726.40-329,542.40

Finding the Fourth Proportional to 862,227.20, 1,292,726.40 and 329,542.40

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Solution

The fourth proportional to 862,227.20, 1,292,726.40 and 329,542.40 is: 494,078.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,227.20 : 1,292,726.40 = 329,542.40 : x
  2. Step 2: Convert to fraction form
    862,227.20/1,292,726.40 = 329,542.40/x
  3. Step 3: Cross multiply
    862,227.20x = 1,292,726.40 × 329,542.40
  4. Step 4: Simplify right side
    862,227.20x = 426,008,160,399.36
  5. Step 5: Solve for x
    x = 426,008,160,399.36/862,227.20
  6. Step 6: Final answer
    x = 494,078.78

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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.