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Finding the Fourth Proportional to 541,401.20, 810,546.60 and 331,449.20

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Solution

The fourth proportional to 541,401.20, 810,546.60 and 331,449.20 is: 496,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,401.20 : 810,546.60 = 331,449.20 : x
  2. Step 2: Convert to fraction form
    541,401.20/810,546.60 = 331,449.20/x
  3. Step 3: Cross multiply
    541,401.20x = 810,546.60 × 331,449.20
  4. Step 4: Simplify right side
    541,401.20x = 268,655,022,132.72
  5. Step 5: Solve for x
    x = 268,655,022,132.72/541,401.20
  6. Step 6: Final answer
    x = 496,221.70

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1.5x scale

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.