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Finding the Fourth Proportional to 609,468.26, 840,787.04 and 394,677.58

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Solution

The fourth proportional to 609,468.26, 840,787.04 and 394,677.58 is: 544,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,468.26 : 840,787.04 = 394,677.58 : x
  2. Step 2: Convert to fraction form
    609,468.26/840,787.04 = 394,677.58/x
  3. Step 3: Cross multiply
    609,468.26x = 840,787.04 × 394,677.58
  4. Step 4: Simplify right side
    609,468.26x = 331,839,794,242.56
  5. Step 5: Solve for x
    x = 331,839,794,242.56/609,468.26
  6. Step 6: Final answer
    x = 544,474.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.