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Finding the Fourth Proportional to 397,710, 548,839.89 and 218,862

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Solution

The fourth proportional to 397,710, 548,839.89 and 218,862 is: 302,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,710 : 548,839.89 = 218,862 : x
  2. Step 2: Convert to fraction form
    397,710/548,839.89 = 218,862/x
  3. Step 3: Cross multiply
    397,710x = 548,839.89 × 218,862
  4. Step 4: Simplify right side
    397,710x = 120,120,196,005.18
  5. Step 5: Solve for x
    x = 120,120,196,005.18/397,710
  6. Step 6: Final answer
    x = 302,029.61

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