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Finding the Fourth Proportional to 603,576.41, 906,132.87 and 391,232.88

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Solution

The fourth proportional to 603,576.41, 906,132.87 and 391,232.88 is: 587,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,576.41 : 906,132.87 = 391,232.88 : x
  2. Step 2: Convert to fraction form
    603,576.41/906,132.87 = 391,232.88/x
  3. Step 3: Cross multiply
    603,576.41x = 906,132.87 × 391,232.88
  4. Step 4: Simplify right side
    603,576.41x = 354,508,970,436.60
  5. Step 5: Solve for x
    x = 354,508,970,436.60/603,576.41
  6. Step 6: Final answer
    x = 587,347.29

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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.