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Finding the Fourth Proportional to 476,691.55, 657,839.09 and 258,904.48

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Solution

The fourth proportional to 476,691.55, 657,839.09 and 258,904.48 is: 357,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,691.55 : 657,839.09 = 258,904.48 : x
  2. Step 2: Convert to fraction form
    476,691.55/657,839.09 = 258,904.48/x
  3. Step 3: Cross multiply
    476,691.55x = 657,839.09 × 258,904.48
  4. Step 4: Simplify right side
    476,691.55x = 170,317,487,520.12
  5. Step 5: Solve for x
    x = 170,317,487,520.12/476,691.55
  6. Step 6: Final answer
    x = 357,290.76

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