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Finding the Fourth Proportional to 479.86, 661.97 and 461.23

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Solution

The fourth proportional to 479.86, 661.97 and 461.23 is: 636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.86 : 661.97 = 461.23 : x
  2. Step 2: Convert to fraction form
    479.86/661.97 = 461.23/x
  3. Step 3: Cross multiply
    479.86x = 661.97 × 461.23
  4. Step 4: Simplify right side
    479.86x = 305,319.92
  5. Step 5: Solve for x
    x = 305,319.92/479.86
  6. Step 6: Final answer
    x = 636.27

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