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Finding the Fourth Proportional to 439,232.20, 657,536.10 and 261,647.80

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Solution

The fourth proportional to 439,232.20, 657,536.10 and 261,647.80 is: 391,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,232.20 : 657,536.10 = 261,647.80 : x
  2. Step 2: Convert to fraction form
    439,232.20/657,536.10 = 261,647.80/x
  3. Step 3: Cross multiply
    439,232.20x = 657,536.10 × 261,647.80
  4. Step 4: Simplify right side
    439,232.20x = 172,042,873,985.58
  5. Step 5: Solve for x
    x = 172,042,873,985.58/439,232.20
  6. Step 6: Final answer
    x = 391,690.03

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