Home / 861,399.26-1,292,134.52-254,187.58

Finding the Fourth Proportional to 861,399.26, 1,292,134.52 and 254,187.58

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Solution

The fourth proportional to 861,399.26, 1,292,134.52 and 254,187.58 is: 381,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,399.26 : 1,292,134.52 = 254,187.58 : x
  2. Step 2: Convert to fraction form
    861,399.26/1,292,134.52 = 254,187.58/x
  3. Step 3: Cross multiply
    861,399.26x = 1,292,134.52 × 254,187.58
  4. Step 4: Simplify right side
    861,399.26x = 328,444,548,447.30
  5. Step 5: Solve for x
    x = 328,444,548,447.30/861,399.26
  6. Step 6: Final answer
    x = 381,291.88

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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.