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Finding the Fourth Proportional to 519.68, 779.00 and 276.33

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Solution

The fourth proportional to 519.68, 779.00 and 276.33 is: 414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.68 : 779.00 = 276.33 : x
  2. Step 2: Convert to fraction form
    519.68/779.00 = 276.33/x
  3. Step 3: Cross multiply
    519.68x = 779.00 × 276.33
  4. Step 4: Simplify right side
    519.68x = 215,259.69
  5. Step 5: Solve for x
    x = 215,259.69/519.68
  6. Step 6: Final answer
    x = 414.22

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