Home / 792,109.80-1,188,456.30-259,648.20

Finding the Fourth Proportional to 792,109.80, 1,188,456.30 and 259,648.20

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Solution

The fourth proportional to 792,109.80, 1,188,456.30 and 259,648.20 is: 389,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,109.80 : 1,188,456.30 = 259,648.20 : x
  2. Step 2: Convert to fraction form
    792,109.80/1,188,456.30 = 259,648.20/x
  3. Step 3: Cross multiply
    792,109.80x = 1,188,456.30 × 259,648.20
  4. Step 4: Simplify right side
    792,109.80x = 308,580,539,073.66
  5. Step 5: Solve for x
    x = 308,580,539,073.66/792,109.80
  6. Step 6: Final answer
    x = 389,567.88

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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.