Home / 1,272,373-1,755,878.40-728,517.16

Finding the Fourth Proportional to 1,272,373, 1,755,878.40 and 728,517.16

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Solution

The fourth proportional to 1,272,373, 1,755,878.40 and 728,517.16 is: 1,005,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,373 : 1,755,878.40 = 728,517.16 : x
  2. Step 2: Convert to fraction form
    1,272,373/1,755,878.40 = 728,517.16/x
  3. Step 3: Cross multiply
    1,272,373x = 1,755,878.40 × 728,517.16
  4. Step 4: Simplify right side
    1,272,373x = 1,279,187,545,273.34
  5. Step 5: Solve for x
    x = 1,279,187,545,273.34/1,272,373
  6. Step 6: Final answer
    x = 1,005,355.78

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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.