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Finding the Fourth Proportional to 666,554.91, 999,982.43 and 211,173.61

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Solution

The fourth proportional to 666,554.91, 999,982.43 and 211,173.61 is: 316,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,554.91 : 999,982.43 = 211,173.61 : x
  2. Step 2: Convert to fraction form
    666,554.91/999,982.43 = 211,173.61/x
  3. Step 3: Cross multiply
    666,554.91x = 999,982.43 × 211,173.61
  4. Step 4: Simplify right side
    666,554.91x = 211,169,899,679.67
  5. Step 5: Solve for x
    x = 211,169,899,679.67/666,554.91
  6. Step 6: Final answer
    x = 316,807.96

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