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Finding the Fourth Proportional to 431,626.78, 647,440.17 and 182,310.94

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Solution

The fourth proportional to 431,626.78, 647,440.17 and 182,310.94 is: 273,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,626.78 : 647,440.17 = 182,310.94 : x
  2. Step 2: Convert to fraction form
    431,626.78/647,440.17 = 182,310.94/x
  3. Step 3: Cross multiply
    431,626.78x = 647,440.17 × 182,310.94
  4. Step 4: Simplify right side
    431,626.78x = 118,035,425,986.46
  5. Step 5: Solve for x
    x = 118,035,425,986.46/431,626.78
  6. Step 6: Final answer
    x = 273,466.41

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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.