Home / 861,785.65-1,292,766.90-329,754.16

Finding the Fourth Proportional to 861,785.65, 1,292,766.90 and 329,754.16

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Solution

The fourth proportional to 861,785.65, 1,292,766.90 and 329,754.16 is: 494,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,785.65 : 1,292,766.90 = 329,754.16 : x
  2. Step 2: Convert to fraction form
    861,785.65/1,292,766.90 = 329,754.16/x
  3. Step 3: Cross multiply
    861,785.65x = 1,292,766.90 × 329,754.16
  4. Step 4: Simplify right side
    861,785.65x = 426,295,263,185.30
  5. Step 5: Solve for x
    x = 426,295,263,185.30/861,785.65
  6. Step 6: Final answer
    x = 494,665.07

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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.