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Finding the Fourth Proportional to 566.44, 781.70 and 317.75

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Solution

The fourth proportional to 566.44, 781.70 and 317.75 is: 438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.44 : 781.70 = 317.75 : x
  2. Step 2: Convert to fraction form
    566.44/781.70 = 317.75/x
  3. Step 3: Cross multiply
    566.44x = 781.70 × 317.75
  4. Step 4: Simplify right side
    566.44x = 248,379.68
  5. Step 5: Solve for x
    x = 248,379.68/566.44
  6. Step 6: Final answer
    x = 438.49

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