Home / 726,140.98-1,002,087.42-403,851.20

Finding the Fourth Proportional to 726,140.98, 1,002,087.42 and 403,851.20

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Solution

The fourth proportional to 726,140.98, 1,002,087.42 and 403,851.20 is: 557,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,140.98 : 1,002,087.42 = 403,851.20 : x
  2. Step 2: Convert to fraction form
    726,140.98/1,002,087.42 = 403,851.20/x
  3. Step 3: Cross multiply
    726,140.98x = 1,002,087.42 × 403,851.20
  4. Step 4: Simplify right side
    726,140.98x = 404,694,207,071.90
  5. Step 5: Solve for x
    x = 404,694,207,071.90/726,140.98
  6. Step 6: Final answer
    x = 557,321.82

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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.