Home / 541,011.20-809,961.60-331,059.20

Finding the Fourth Proportional to 541,011.20, 809,961.60 and 331,059.20

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Solution

The fourth proportional to 541,011.20, 809,961.60 and 331,059.20 is: 495,637.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,011.20 : 809,961.60 = 331,059.20 : x
  2. Step 2: Convert to fraction form
    541,011.20/809,961.60 = 331,059.20/x
  3. Step 3: Cross multiply
    541,011.20x = 809,961.60 × 331,059.20
  4. Step 4: Simplify right side
    541,011.20x = 268,145,239,326.72
  5. Step 5: Solve for x
    x = 268,145,239,326.72/541,011.20
  6. Step 6: Final answer
    x = 495,637.13

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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.