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Finding the Fourth Proportional to 541,287.20, 810,375.60 and 331,335.20

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Solution

The fourth proportional to 541,287.20, 810,375.60 and 331,335.20 is: 496,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,287.20 : 810,375.60 = 331,335.20 : x
  2. Step 2: Convert to fraction form
    541,287.20/810,375.60 = 331,335.20/x
  3. Step 3: Cross multiply
    541,287.20x = 810,375.60 × 331,335.20
  4. Step 4: Simplify right side
    541,287.20x = 268,505,961,501.12
  5. Step 5: Solve for x
    x = 268,505,961,501.12/541,287.20
  6. Step 6: Final answer
    x = 496,050.82

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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.