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Finding the Fourth Proportional to 889,843.41, 1,334,753.87 and 215,930.25

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Solution

The fourth proportional to 889,843.41, 1,334,753.87 and 215,930.25 is: 323,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,843.41 : 1,334,753.87 = 215,930.25 : x
  2. Step 2: Convert to fraction form
    889,843.41/1,334,753.87 = 215,930.25/x
  3. Step 3: Cross multiply
    889,843.41x = 1,334,753.87 × 215,930.25
  4. Step 4: Simplify right side
    889,843.41x = 288,213,735,757.92
  5. Step 5: Solve for x
    x = 288,213,735,757.92/889,843.41
  6. Step 6: Final answer
    x = 323,892.65

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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.