Home / 1,272,391.17-1,755,901.71-699,434.85

Finding the Fourth Proportional to 1,272,391.17, 1,755,901.71 and 699,434.85

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Solution

The fourth proportional to 1,272,391.17, 1,755,901.71 and 699,434.85 is: 965,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,391.17 : 1,755,901.71 = 699,434.85 : x
  2. Step 2: Convert to fraction form
    1,272,391.17/1,755,901.71 = 699,434.85/x
  3. Step 3: Cross multiply
    1,272,391.17x = 1,755,901.71 × 699,434.85
  4. Step 4: Simplify right side
    1,272,391.17x = 1,228,138,849,148.59
  5. Step 5: Solve for x
    x = 1,228,138,849,148.59/1,272,391.17
  6. Step 6: Final answer
    x = 965,221.13

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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.