Home / 726,458.20-1,002,518.46-404,205.40

Finding the Fourth Proportional to 726,458.20, 1,002,518.46 and 404,205.40

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Solution

The fourth proportional to 726,458.20, 1,002,518.46 and 404,205.40 is: 557,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,458.20 : 1,002,518.46 = 404,205.40 : x
  2. Step 2: Convert to fraction form
    726,458.20/1,002,518.46 = 404,205.40/x
  3. Step 3: Cross multiply
    726,458.20x = 1,002,518.46 × 404,205.40
  4. Step 4: Simplify right side
    726,458.20x = 405,223,375,131.68
  5. Step 5: Solve for x
    x = 405,223,375,131.68/726,458.20
  6. Step 6: Final answer
    x = 557,806.87

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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.