Home / 1,398,517.25-2,098,896.88-724,791.17

Finding the Fourth Proportional to 1,398,517.25, 2,098,896.88 and 724,791.17

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Solution

The fourth proportional to 1,398,517.25, 2,098,896.88 and 724,791.17 is: 1,087,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,517.25 : 2,098,896.88 = 724,791.17 : x
  2. Step 2: Convert to fraction form
    1,398,517.25/2,098,896.88 = 724,791.17/x
  3. Step 3: Cross multiply
    1,398,517.25x = 2,098,896.88 × 724,791.17
  4. Step 4: Simplify right side
    1,398,517.25x = 1,521,261,913,058.09
  5. Step 5: Solve for x
    x = 1,521,261,913,058.09/1,398,517.25
  6. Step 6: Final answer
    x = 1,087,767.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.