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Finding the Fourth Proportional to 666,838.17, 998,999.73 and 329,486.13

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Solution

The fourth proportional to 666,838.17, 998,999.73 and 329,486.13 is: 493,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,838.17 : 998,999.73 = 329,486.13 : x
  2. Step 2: Convert to fraction form
    666,838.17/998,999.73 = 329,486.13/x
  3. Step 3: Cross multiply
    666,838.17x = 998,999.73 × 329,486.13
  4. Step 4: Simplify right side
    666,838.17x = 329,156,554,908.75
  5. Step 5: Solve for x
    x = 329,156,554,908.75/666,838.17
  6. Step 6: Final answer
    x = 493,607.85

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