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Finding the Fourth Proportional to 519.63, 716.99 and 298.59

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Solution

The fourth proportional to 519.63, 716.99 and 298.59 is: 412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.63 : 716.99 = 298.59 : x
  2. Step 2: Convert to fraction form
    519.63/716.99 = 298.59/x
  3. Step 3: Cross multiply
    519.63x = 716.99 × 298.59
  4. Step 4: Simplify right side
    519.63x = 214,083.54
  5. Step 5: Solve for x
    x = 214,083.54/519.63
  6. Step 6: Final answer
    x = 412.00

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