Home / 726,183.08-1,002,062.44-420,198.43

Finding the Fourth Proportional to 726,183.08, 1,002,062.44 and 420,198.43

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Solution

The fourth proportional to 726,183.08, 1,002,062.44 and 420,198.43 is: 579,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,183.08 : 1,002,062.44 = 420,198.43 : x
  2. Step 2: Convert to fraction form
    726,183.08/1,002,062.44 = 420,198.43/x
  3. Step 3: Cross multiply
    726,183.08x = 1,002,062.44 × 420,198.43
  4. Step 4: Simplify right side
    726,183.08x = 421,065,064,049.97
  5. Step 5: Solve for x
    x = 421,065,064,049.97/726,183.08
  6. Step 6: Final answer
    x = 579,833.21

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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.