Home / 766,281.15-1,149,517.16-260,803.29

Finding the Fourth Proportional to 766,281.15, 1,149,517.16 and 260,803.29

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Solution

The fourth proportional to 766,281.15, 1,149,517.16 and 260,803.29 is: 391,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,281.15 : 1,149,517.16 = 260,803.29 : x
  2. Step 2: Convert to fraction form
    766,281.15/1,149,517.16 = 260,803.29/x
  3. Step 3: Cross multiply
    766,281.15x = 1,149,517.16 × 260,803.29
  4. Step 4: Simplify right side
    766,281.15x = 299,797,855,935.44
  5. Step 5: Solve for x
    x = 299,797,855,935.44/766,281.15
  6. Step 6: Final answer
    x = 391,237.41

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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.