Home / 726,182.58-1,002,061.76-420,197.92

Finding the Fourth Proportional to 726,182.58, 1,002,061.76 and 420,197.92

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Solution

The fourth proportional to 726,182.58, 1,002,061.76 and 420,197.92 is: 579,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,182.58 : 1,002,061.76 = 420,197.92 : x
  2. Step 2: Convert to fraction form
    726,182.58/1,002,061.76 = 420,197.92/x
  3. Step 3: Cross multiply
    726,182.58x = 1,002,061.76 × 420,197.92
  4. Step 4: Simplify right side
    726,182.58x = 421,064,267,263.54
  5. Step 5: Solve for x
    x = 421,064,267,263.54/726,182.58
  6. Step 6: Final answer
    x = 579,832.51

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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.