Home / 861,750.43-1,292,711.30-329,718.94

Finding the Fourth Proportional to 861,750.43, 1,292,711.30 and 329,718.94

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Solution

The fourth proportional to 861,750.43, 1,292,711.30 and 329,718.94 is: 494,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,750.43 : 1,292,711.30 = 329,718.94 : x
  2. Step 2: Convert to fraction form
    861,750.43/1,292,711.30 = 329,718.94/x
  3. Step 3: Cross multiply
    861,750.43x = 1,292,711.30 × 329,718.94
  4. Step 4: Simplify right side
    861,750.43x = 426,231,395,918.10
  5. Step 5: Solve for x
    x = 426,231,395,918.10/861,750.43
  6. Step 6: Final answer
    x = 494,611.18

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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.