Home / 439,293.12-658,689.88-172,909.20

Finding the Fourth Proportional to 439,293.12, 658,689.88 and 172,909.20

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Solution

The fourth proportional to 439,293.12, 658,689.88 and 172,909.20 is: 259,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,293.12 : 658,689.88 = 172,909.20 : x
  2. Step 2: Convert to fraction form
    439,293.12/658,689.88 = 172,909.20/x
  3. Step 3: Cross multiply
    439,293.12x = 658,689.88 × 172,909.20
  4. Step 4: Simplify right side
    439,293.12x = 113,893,540,198.90
  5. Step 5: Solve for x
    x = 113,893,540,198.90/439,293.12
  6. Step 6: Final answer
    x = 259,265.48

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