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Finding the Fourth Proportional to 612,382.82, 916,608.89 and 327,360.83

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Solution

The fourth proportional to 612,382.82, 916,608.89 and 327,360.83 is: 489,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,382.82 : 916,608.89 = 327,360.83 : x
  2. Step 2: Convert to fraction form
    612,382.82/916,608.89 = 327,360.83/x
  3. Step 3: Cross multiply
    612,382.82x = 916,608.89 × 327,360.83
  4. Step 4: Simplify right side
    612,382.82x = 300,061,843,251.14
  5. Step 5: Solve for x
    x = 300,061,843,251.14/612,382.82
  6. Step 6: Final answer
    x = 489,990.63

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