Home / 483,122.28-724,510.98-198,729.72

Finding the Fourth Proportional to 483,122.28, 724,510.98 and 198,729.72

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Solution

The fourth proportional to 483,122.28, 724,510.98 and 198,729.72 is: 298,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,122.28 : 724,510.98 = 198,729.72 : x
  2. Step 2: Convert to fraction form
    483,122.28/724,510.98 = 198,729.72/x
  3. Step 3: Cross multiply
    483,122.28x = 724,510.98 × 198,729.72
  4. Step 4: Simplify right side
    483,122.28x = 143,981,864,192.33
  5. Step 5: Solve for x
    x = 143,981,864,192.33/483,122.28
  6. Step 6: Final answer
    x = 298,023.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.