Home / 1,272,418.92-1,755,940.20-699,462.72

Finding the Fourth Proportional to 1,272,418.92, 1,755,940.20 and 699,462.72

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Solution

The fourth proportional to 1,272,418.92, 1,755,940.20 and 699,462.72 is: 965,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,418.92 : 1,755,940.20 = 699,462.72 : x
  2. Step 2: Convert to fraction form
    1,272,418.92/1,755,940.20 = 699,462.72/x
  3. Step 3: Cross multiply
    1,272,418.92x = 1,755,940.20 × 699,462.72
  4. Step 4: Simplify right side
    1,272,418.92x = 1,228,214,708,449.34
  5. Step 5: Solve for x
    x = 1,228,214,708,449.34/1,272,418.92
  6. Step 6: Final answer
    x = 965,259.70

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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.