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Finding the Fourth Proportional to 355,583.20, 532,062.60 and 324,090.40

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Solution

The fourth proportional to 355,583.20, 532,062.60 and 324,090.40 is: 484,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,583.20 : 532,062.60 = 324,090.40 : x
  2. Step 2: Convert to fraction form
    355,583.20/532,062.60 = 324,090.40/x
  3. Step 3: Cross multiply
    355,583.20x = 532,062.60 × 324,090.40
  4. Step 4: Simplify right side
    355,583.20x = 172,436,380,859.04
  5. Step 5: Solve for x
    x = 172,436,380,859.04/355,583.20
  6. Step 6: Final answer
    x = 484,939.62

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