Home / 726,407.87-1,002,456.32-404,147.95

Finding the Fourth Proportional to 726,407.87, 1,002,456.32 and 404,147.95

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Solution

The fourth proportional to 726,407.87, 1,002,456.32 and 404,147.95 is: 557,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,407.87 : 1,002,456.32 = 404,147.95 : x
  2. Step 2: Convert to fraction form
    726,407.87/1,002,456.32 = 404,147.95/x
  3. Step 3: Cross multiply
    726,407.87x = 1,002,456.32 × 404,147.95
  4. Step 4: Simplify right side
    726,407.87x = 405,140,662,165.66
  5. Step 5: Solve for x
    x = 405,140,662,165.66/726,407.87
  6. Step 6: Final answer
    x = 557,731.66

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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.