Home / 726,182.08-1,002,061.07-420,197.43

Finding the Fourth Proportional to 726,182.08, 1,002,061.07 and 420,197.43

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Solution

The fourth proportional to 726,182.08, 1,002,061.07 and 420,197.43 is: 579,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,182.08 : 1,002,061.07 = 420,197.43 : x
  2. Step 2: Convert to fraction form
    726,182.08/1,002,061.07 = 420,197.43/x
  3. Step 3: Cross multiply
    726,182.08x = 1,002,061.07 × 420,197.43
  4. Step 4: Simplify right side
    726,182.08x = 421,063,479,205.76
  5. Step 5: Solve for x
    x = 421,063,479,205.76/726,182.08
  6. Step 6: Final answer
    x = 579,831.82

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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.