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Finding the Fourth Proportional to 488,767.53, 674,306.76 and 304,899.10

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Solution

The fourth proportional to 488,767.53, 674,306.76 and 304,899.10 is: 420,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,767.53 : 674,306.76 = 304,899.10 : x
  2. Step 2: Convert to fraction form
    488,767.53/674,306.76 = 304,899.10/x
  3. Step 3: Cross multiply
    488,767.53x = 674,306.76 × 304,899.10
  4. Step 4: Simplify right side
    488,767.53x = 205,595,524,247.92
  5. Step 5: Solve for x
    x = 205,595,524,247.92/488,767.53
  6. Step 6: Final answer
    x = 420,640.71

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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.