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Finding the Fourth Proportional to 666.07, 999.11 and 276.01

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Solution

The fourth proportional to 666.07, 999.11 and 276.01 is: 414.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.07 : 999.11 = 276.01 : x
  2. Step 2: Convert to fraction form
    666.07/999.11 = 276.01/x
  3. Step 3: Cross multiply
    666.07x = 999.11 × 276.01
  4. Step 4: Simplify right side
    666.07x = 275,764.35
  5. Step 5: Solve for x
    x = 275,764.35/666.07
  6. Step 6: Final answer
    x = 414.02

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