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Finding the Fourth Proportional to 789.76, 1,184.74 and 269.62

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Solution

The fourth proportional to 789.76, 1,184.74 and 269.62 is: 404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.76 : 1,184.74 = 269.62 : x
  2. Step 2: Convert to fraction form
    789.76/1,184.74 = 269.62/x
  3. Step 3: Cross multiply
    789.76x = 1,184.74 × 269.62
  4. Step 4: Simplify right side
    789.76x = 319,429.60
  5. Step 5: Solve for x
    x = 319,429.60/789.76
  6. Step 6: Final answer
    x = 404.46

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