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Finding the Fourth Proportional to 609,787.62, 914,193 and 289,778.90

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Solution

The fourth proportional to 609,787.62, 914,193 and 289,778.90 is: 434,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,787.62 : 914,193 = 289,778.90 : x
  2. Step 2: Convert to fraction form
    609,787.62/914,193 = 289,778.90/x
  3. Step 3: Cross multiply
    609,787.62x = 914,193 × 289,778.90
  4. Step 4: Simplify right side
    609,787.62x = 264,913,837,356.74
  5. Step 5: Solve for x
    x = 264,913,837,356.74/609,787.62
  6. Step 6: Final answer
    x = 434,436.23

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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.