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Finding the Fourth Proportional to 481,311.79, 664,001.70 and 290,219.02

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Solution

The fourth proportional to 481,311.79, 664,001.70 and 290,219.02 is: 400,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,311.79 : 664,001.70 = 290,219.02 : x
  2. Step 2: Convert to fraction form
    481,311.79/664,001.70 = 290,219.02/x
  3. Step 3: Cross multiply
    481,311.79x = 664,001.70 × 290,219.02
  4. Step 4: Simplify right side
    481,311.79x = 192,705,922,652.33
  5. Step 5: Solve for x
    x = 192,705,922,652.33/481,311.79
  6. Step 6: Final answer
    x = 400,376.48

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