Home / 861,856.74-1,292,352.39-502,144.02

Finding the Fourth Proportional to 861,856.74, 1,292,352.39 and 502,144.02

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Solution

The fourth proportional to 861,856.74, 1,292,352.39 and 502,144.02 is: 752,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,856.74 : 1,292,352.39 = 502,144.02 : x
  2. Step 2: Convert to fraction form
    861,856.74/1,292,352.39 = 502,144.02/x
  3. Step 3: Cross multiply
    861,856.74x = 1,292,352.39 × 502,144.02
  4. Step 4: Simplify right side
    861,856.74x = 648,947,024,371.21
  5. Step 5: Solve for x
    x = 648,947,024,371.21/861,856.74
  6. Step 6: Final answer
    x = 752,963.91

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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.