Home / 726,140.85-1,002,087.25-403,851.09

Finding the Fourth Proportional to 726,140.85, 1,002,087.25 and 403,851.09

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Solution

The fourth proportional to 726,140.85, 1,002,087.25 and 403,851.09 is: 557,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,140.85 : 1,002,087.25 = 403,851.09 : x
  2. Step 2: Convert to fraction form
    726,140.85/1,002,087.25 = 403,851.09/x
  3. Step 3: Cross multiply
    726,140.85x = 1,002,087.25 × 403,851.09
  4. Step 4: Simplify right side
    726,140.85x = 404,694,023,420.15
  5. Step 5: Solve for x
    x = 404,694,023,420.15/726,140.85
  6. Step 6: Final answer
    x = 557,321.66

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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.