Home / 726,642.80-1,002,753.78-404,350.08

Finding the Fourth Proportional to 726,642.80, 1,002,753.78 and 404,350.08

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Solution

The fourth proportional to 726,642.80, 1,002,753.78 and 404,350.08 is: 557,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,642.80 : 1,002,753.78 = 404,350.08 : x
  2. Step 2: Convert to fraction form
    726,642.80/1,002,753.78 = 404,350.08/x
  3. Step 3: Cross multiply
    726,642.80x = 1,002,753.78 × 404,350.08
  4. Step 4: Simplify right side
    726,642.80x = 405,463,565,886.66
  5. Step 5: Solve for x
    x = 405,463,565,886.66/726,642.80
  6. Step 6: Final answer
    x = 557,995.71

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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.