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Finding the Fourth Proportional to 603,575.91, 906,132.11 and 391,232.38

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Solution

The fourth proportional to 603,575.91, 906,132.11 and 391,232.38 is: 587,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,575.91 : 906,132.11 = 391,232.38 : x
  2. Step 2: Convert to fraction form
    603,575.91/906,132.11 = 391,232.38/x
  3. Step 3: Cross multiply
    603,575.91x = 906,132.11 × 391,232.38
  4. Step 4: Simplify right side
    603,575.91x = 354,508,224,100.47
  5. Step 5: Solve for x
    x = 354,508,224,100.47/603,575.91
  6. Step 6: Final answer
    x = 587,346.54

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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.