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Finding the Fourth Proportional to 449,787.48, 674,135.52 and 330,351.30

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Solution

The fourth proportional to 449,787.48, 674,135.52 and 330,351.30 is: 495,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,787.48 : 674,135.52 = 330,351.30 : x
  2. Step 2: Convert to fraction form
    449,787.48/674,135.52 = 330,351.30/x
  3. Step 3: Cross multiply
    449,787.48x = 674,135.52 × 330,351.30
  4. Step 4: Simplify right side
    449,787.48x = 222,701,545,408.18
  5. Step 5: Solve for x
    x = 222,701,545,408.18/449,787.48
  6. Step 6: Final answer
    x = 495,126.15

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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.