Home / 1,272,425.46-1,755,987.58-699,489.78

Finding the Fourth Proportional to 1,272,425.46, 1,755,987.58 and 699,489.78

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Solution

The fourth proportional to 1,272,425.46, 1,755,987.58 and 699,489.78 is: 965,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,425.46 : 1,755,987.58 = 699,489.78 : x
  2. Step 2: Convert to fraction form
    1,272,425.46/1,755,987.58 = 699,489.78/x
  3. Step 3: Cross multiply
    1,272,425.46x = 1,755,987.58 × 699,489.78
  4. Step 4: Simplify right side
    1,272,425.46x = 1,228,295,366,016.93
  5. Step 5: Solve for x
    x = 1,228,295,366,016.93/1,272,425.46
  6. Step 6: Final answer
    x = 965,318.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.