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Finding the Fourth Proportional to 400.59, 600.48 and 317.97

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Solution

The fourth proportional to 400.59, 600.48 and 317.97 is: 476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.59 : 600.48 = 317.97 : x
  2. Step 2: Convert to fraction form
    400.59/600.48 = 317.97/x
  3. Step 3: Cross multiply
    400.59x = 600.48 × 317.97
  4. Step 4: Simplify right side
    400.59x = 190,934.63
  5. Step 5: Solve for x
    x = 190,934.63/400.59
  6. Step 6: Final answer
    x = 476.63

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