Home / 726,417.63-1,002,469.74-404,157.78

Finding the Fourth Proportional to 726,417.63, 1,002,469.74 and 404,157.78

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Solution

The fourth proportional to 726,417.63, 1,002,469.74 and 404,157.78 is: 557,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,417.63 : 1,002,469.74 = 404,157.78 : x
  2. Step 2: Convert to fraction form
    726,417.63/1,002,469.74 = 404,157.78/x
  3. Step 3: Cross multiply
    726,417.63x = 1,002,469.74 × 404,157.78
  4. Step 4: Simplify right side
    726,417.63x = 405,155,944,635.58
  5. Step 5: Solve for x
    x = 405,155,944,635.58/726,417.63
  6. Step 6: Final answer
    x = 557,745.20

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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.