Home / 766,519.12-1,149,691.20-205,510

Finding the Fourth Proportional to 766,519.12, 1,149,691.20 and 205,510

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Solution

The fourth proportional to 766,519.12, 1,149,691.20 and 205,510 is: 308,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,519.12 : 1,149,691.20 = 205,510 : x
  2. Step 2: Convert to fraction form
    766,519.12/1,149,691.20 = 205,510/x
  3. Step 3: Cross multiply
    766,519.12x = 1,149,691.20 × 205,510
  4. Step 4: Simplify right side
    766,519.12x = 236,273,038,512
  5. Step 5: Solve for x
    x = 236,273,038,512/766,519.12
  6. Step 6: Final answer
    x = 308,241.55

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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.