Home / 792,149.30-1,188,515.55-259,687.70

Finding the Fourth Proportional to 792,149.30, 1,188,515.55 and 259,687.70

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Solution

The fourth proportional to 792,149.30, 1,188,515.55 and 259,687.70 is: 389,627.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,149.30 : 1,188,515.55 = 259,687.70 : x
  2. Step 2: Convert to fraction form
    792,149.30/1,188,515.55 = 259,687.70/x
  3. Step 3: Cross multiply
    792,149.30x = 1,188,515.55 × 259,687.70
  4. Step 4: Simplify right side
    792,149.30x = 308,642,869,593.74
  5. Step 5: Solve for x
    x = 308,642,869,593.74/792,149.30
  6. Step 6: Final answer
    x = 389,627.14

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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.