Home / 726,458.70-1,002,519.15-404,205.90

Finding the Fourth Proportional to 726,458.70, 1,002,519.15 and 404,205.90

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Solution

The fourth proportional to 726,458.70, 1,002,519.15 and 404,205.90 is: 557,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,458.70 : 1,002,519.15 = 404,205.90 : x
  2. Step 2: Convert to fraction form
    726,458.70/1,002,519.15 = 404,205.90/x
  3. Step 3: Cross multiply
    726,458.70x = 1,002,519.15 × 404,205.90
  4. Step 4: Simplify right side
    726,458.70x = 405,224,155,292.99
  5. Step 5: Solve for x
    x = 405,224,155,292.99/726,458.70
  6. Step 6: Final answer
    x = 557,807.56

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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.