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Finding the Fourth Proportional to 372,684.80, 559,027.20 and 343,816.40

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Solution

The fourth proportional to 372,684.80, 559,027.20 and 343,816.40 is: 515,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,684.80 : 559,027.20 = 343,816.40 : x
  2. Step 2: Convert to fraction form
    372,684.80/559,027.20 = 343,816.40/x
  3. Step 3: Cross multiply
    372,684.80x = 559,027.20 × 343,816.40
  4. Step 4: Simplify right side
    372,684.80x = 192,202,719,406.08
  5. Step 5: Solve for x
    x = 192,202,719,406.08/372,684.80
  6. Step 6: Final answer
    x = 515,724.60

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