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Finding the Fourth Proportional to 433.67, 648.72 and 323.91

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Solution

The fourth proportional to 433.67, 648.72 and 323.91 is: 484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.67 : 648.72 = 323.91 : x
  2. Step 2: Convert to fraction form
    433.67/648.72 = 323.91/x
  3. Step 3: Cross multiply
    433.67x = 648.72 × 323.91
  4. Step 4: Simplify right side
    433.67x = 210,126.90
  5. Step 5: Solve for x
    x = 210,126.90/433.67
  6. Step 6: Final answer
    x = 484.54

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