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Finding the Fourth Proportional to 444.72, 668.55 and 412.61

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Solution

The fourth proportional to 444.72, 668.55 and 412.61 is: 620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.72 : 668.55 = 412.61 : x
  2. Step 2: Convert to fraction form
    444.72/668.55 = 412.61/x
  3. Step 3: Cross multiply
    444.72x = 668.55 × 412.61
  4. Step 4: Simplify right side
    444.72x = 275,849.45
  5. Step 5: Solve for x
    x = 275,849.45/444.72
  6. Step 6: Final answer
    x = 620.27

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