Home / 766,515.12-1,149,685.20-205,506

Finding the Fourth Proportional to 766,515.12, 1,149,685.20 and 205,506

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Solution

The fourth proportional to 766,515.12, 1,149,685.20 and 205,506 is: 308,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,515.12 : 1,149,685.20 = 205,506 : x
  2. Step 2: Convert to fraction form
    766,515.12/1,149,685.20 = 205,506/x
  3. Step 3: Cross multiply
    766,515.12x = 1,149,685.20 × 205,506
  4. Step 4: Simplify right side
    766,515.12x = 236,267,206,711.20
  5. Step 5: Solve for x
    x = 236,267,206,711.20/766,515.12
  6. Step 6: Final answer
    x = 308,235.55

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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.