Home / 792,125.20-1,188,187.80-259,517.80

Finding the Fourth Proportional to 792,125.20, 1,188,187.80 and 259,517.80

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Solution

The fourth proportional to 792,125.20, 1,188,187.80 and 259,517.80 is: 389,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,125.20 : 1,188,187.80 = 259,517.80 : x
  2. Step 2: Convert to fraction form
    792,125.20/1,188,187.80 = 259,517.80/x
  3. Step 3: Cross multiply
    792,125.20x = 1,188,187.80 × 259,517.80
  4. Step 4: Simplify right side
    792,125.20x = 308,355,883,842.84
  5. Step 5: Solve for x
    x = 308,355,883,842.84/792,125.20
  6. Step 6: Final answer
    x = 389,276.70

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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.