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Finding the Fourth Proportional to 739.44, 1,109.09 and 277

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Solution

The fourth proportional to 739.44, 1,109.09 and 277 is: 415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.44 : 1,109.09 = 277 : x
  2. Step 2: Convert to fraction form
    739.44/1,109.09 = 277/x
  3. Step 3: Cross multiply
    739.44x = 1,109.09 × 277
  4. Step 4: Simplify right side
    739.44x = 307,217.93
  5. Step 5: Solve for x
    x = 307,217.93/739.44
  6. Step 6: Final answer
    x = 415.47

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