Home / 454,234.20-681,351.30-318,931.80

Finding the Fourth Proportional to 454,234.20, 681,351.30 and 318,931.80

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Solution

The fourth proportional to 454,234.20, 681,351.30 and 318,931.80 is: 478,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,234.20 : 681,351.30 = 318,931.80 : x
  2. Step 2: Convert to fraction form
    454,234.20/681,351.30 = 318,931.80/x
  3. Step 3: Cross multiply
    454,234.20x = 681,351.30 × 318,931.80
  4. Step 4: Simplify right side
    454,234.20x = 217,304,596,541.34
  5. Step 5: Solve for x
    x = 217,304,596,541.34/454,234.20
  6. Step 6: Final answer
    x = 478,397.70

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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.