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Finding the Fourth Proportional to 483,408.21, 724,863.24 and 216,940.28

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Solution

The fourth proportional to 483,408.21, 724,863.24 and 216,940.28 is: 325,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,408.21 : 724,863.24 = 216,940.28 : x
  2. Step 2: Convert to fraction form
    483,408.21/724,863.24 = 216,940.28/x
  3. Step 3: Cross multiply
    483,408.21x = 724,863.24 × 216,940.28
  4. Step 4: Simplify right side
    483,408.21x = 157,252,036,059.47
  5. Step 5: Solve for x
    x = 157,252,036,059.47/483,408.21
  6. Step 6: Final answer
    x = 325,298.65

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