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Finding the Fourth Proportional to 538,436.20, 806,963.10 and 327,850.60

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Solution

The fourth proportional to 538,436.20, 806,963.10 and 327,850.60 is: 491,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,436.20 : 806,963.10 = 327,850.60 : x
  2. Step 2: Convert to fraction form
    538,436.20/806,963.10 = 327,850.60/x
  3. Step 3: Cross multiply
    538,436.20x = 806,963.10 × 327,850.60
  4. Step 4: Simplify right side
    538,436.20x = 264,563,336,512.86
  5. Step 5: Solve for x
    x = 264,563,336,512.86/538,436.20
  6. Step 6: Final answer
    x = 491,355.03

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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.