Home / 1,272,418.20-1,755,961.20-699,458.40

Finding the Fourth Proportional to 1,272,418.20, 1,755,961.20 and 699,458.40

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Solution

The fourth proportional to 1,272,418.20, 1,755,961.20 and 699,458.40 is: 965,265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,418.20 : 1,755,961.20 = 699,458.40 : x
  2. Step 2: Convert to fraction form
    1,272,418.20/1,755,961.20 = 699,458.40/x
  3. Step 3: Cross multiply
    1,272,418.20x = 1,755,961.20 × 699,458.40
  4. Step 4: Simplify right side
    1,272,418.20x = 1,228,221,811,414.08
  5. Step 5: Solve for x
    x = 1,228,221,811,414.08/1,272,418.20
  6. Step 6: Final answer
    x = 965,265.83

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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.