Home / 726,728.60-1,002,932.60-404,437.72

Finding the Fourth Proportional to 726,728.60, 1,002,932.60 and 404,437.72

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Solution

The fourth proportional to 726,728.60, 1,002,932.60 and 404,437.72 is: 558,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,728.60 : 1,002,932.60 = 404,437.72 : x
  2. Step 2: Convert to fraction form
    726,728.60/1,002,932.60 = 404,437.72/x
  3. Step 3: Cross multiply
    726,728.60x = 1,002,932.60 × 404,437.72
  4. Step 4: Simplify right side
    726,728.60x = 405,623,774,057.67
  5. Step 5: Solve for x
    x = 405,623,774,057.67/726,728.60
  6. Step 6: Final answer
    x = 558,150.28

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1.5x scale

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.