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Finding the Fourth Proportional to 541,383.20, 810,519.60 and 331,431.20

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Solution

The fourth proportional to 541,383.20, 810,519.60 and 331,431.20 is: 496,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,383.20 : 810,519.60 = 331,431.20 : x
  2. Step 2: Convert to fraction form
    541,383.20/810,519.60 = 331,431.20/x
  3. Step 3: Cross multiply
    541,383.20x = 810,519.60 × 331,431.20
  4. Step 4: Simplify right side
    541,383.20x = 268,631,483,651.52
  5. Step 5: Solve for x
    x = 268,631,483,651.52/541,383.20
  6. Step 6: Final answer
    x = 496,194.72

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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.