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Finding the Fourth Proportional to 728,353, 1,092,723.90 and 229,717

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Solution

The fourth proportional to 728,353, 1,092,723.90 and 229,717 is: 344,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,353 : 1,092,723.90 = 229,717 : x
  2. Step 2: Convert to fraction form
    728,353/1,092,723.90 = 229,717/x
  3. Step 3: Cross multiply
    728,353x = 1,092,723.90 × 229,717
  4. Step 4: Simplify right side
    728,353x = 251,017,256,136.30
  5. Step 5: Solve for x
    x = 251,017,256,136.30/728,353
  6. Step 6: Final answer
    x = 344,636.81

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