Home / 861,784.65-1,292,765.40-329,753.16

Finding the Fourth Proportional to 861,784.65, 1,292,765.40 and 329,753.16

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Solution

The fourth proportional to 861,784.65, 1,292,765.40 and 329,753.16 is: 494,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,784.65 : 1,292,765.40 = 329,753.16 : x
  2. Step 2: Convert to fraction form
    861,784.65/1,292,765.40 = 329,753.16/x
  3. Step 3: Cross multiply
    861,784.65x = 1,292,765.40 × 329,753.16
  4. Step 4: Simplify right side
    861,784.65x = 426,293,475,788.66
  5. Step 5: Solve for x
    x = 426,293,475,788.66/861,784.65
  6. Step 6: Final answer
    x = 494,663.57

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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.