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Finding the Fourth Proportional to 418,857.72, 627,912.81 and 152,431.98

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Solution

The fourth proportional to 418,857.72, 627,912.81 and 152,431.98 is: 228,511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,857.72 : 627,912.81 = 152,431.98 : x
  2. Step 2: Convert to fraction form
    418,857.72/627,912.81 = 152,431.98/x
  3. Step 3: Cross multiply
    418,857.72x = 627,912.81 × 152,431.98
  4. Step 4: Simplify right side
    418,857.72x = 95,713,992,895.66
  5. Step 5: Solve for x
    x = 95,713,992,895.66/418,857.72
  6. Step 6: Final answer
    x = 228,511.95

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