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Finding the Fourth Proportional to 404,622.80, 606,934.20 and 254,375.90

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Solution

The fourth proportional to 404,622.80, 606,934.20 and 254,375.90 is: 381,563.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,622.80 : 606,934.20 = 254,375.90 : x
  2. Step 2: Convert to fraction form
    404,622.80/606,934.20 = 254,375.90/x
  3. Step 3: Cross multiply
    404,622.80x = 606,934.20 × 254,375.90
  4. Step 4: Simplify right side
    404,622.80x = 154,389,433,365.78
  5. Step 5: Solve for x
    x = 154,389,433,365.78/404,622.80
  6. Step 6: Final answer
    x = 381,563.85

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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.