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Finding the Fourth Proportional to 511,936.96, 706,144.08 and 310,732.96

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Solution

The fourth proportional to 511,936.96, 706,144.08 and 310,732.96 is: 428,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,936.96 : 706,144.08 = 310,732.96 : x
  2. Step 2: Convert to fraction form
    511,936.96/706,144.08 = 310,732.96/x
  3. Step 3: Cross multiply
    511,936.96x = 706,144.08 × 310,732.96
  4. Step 4: Simplify right side
    511,936.96x = 219,422,240,164.88
  5. Step 5: Solve for x
    x = 219,422,240,164.88/511,936.96
  6. Step 6: Final answer
    x = 428,611.84

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