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Finding the Fourth Proportional to 647,025.60, 970,279.20 and 226,084.80

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Solution

The fourth proportional to 647,025.60, 970,279.20 and 226,084.80 is: 339,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,025.60 : 970,279.20 = 226,084.80 : x
  2. Step 2: Convert to fraction form
    647,025.60/970,279.20 = 226,084.80/x
  3. Step 3: Cross multiply
    647,025.60x = 970,279.20 × 226,084.80
  4. Step 4: Simplify right side
    647,025.60x = 219,365,378,876.16
  5. Step 5: Solve for x
    x = 219,365,378,876.16/647,025.60
  6. Step 6: Final answer
    x = 339,036.63

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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.