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Finding the Fourth Proportional to 397,727.78, 548,864.43 and 218,879.78

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Solution

The fourth proportional to 397,727.78, 548,864.43 and 218,879.78 is: 302,054.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,727.78 : 548,864.43 = 218,879.78 : x
  2. Step 2: Convert to fraction form
    397,727.78/548,864.43 = 218,879.78/x
  3. Step 3: Cross multiply
    397,727.78x = 548,864.43 × 218,879.78
  4. Step 4: Simplify right side
    397,727.78x = 120,135,325,688.23
  5. Step 5: Solve for x
    x = 120,135,325,688.23/397,727.78
  6. Step 6: Final answer
    x = 302,054.15

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