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Finding the Fourth Proportional to 414,936.40, 622,404.60 and 408,024.40

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Solution

The fourth proportional to 414,936.40, 622,404.60 and 408,024.40 is: 612,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,936.40 : 622,404.60 = 408,024.40 : x
  2. Step 2: Convert to fraction form
    414,936.40/622,404.60 = 408,024.40/x
  3. Step 3: Cross multiply
    414,936.40x = 622,404.60 × 408,024.40
  4. Step 4: Simplify right side
    414,936.40x = 253,956,263,472.24
  5. Step 5: Solve for x
    x = 253,956,263,472.24/414,936.40
  6. Step 6: Final answer
    x = 612,036.60

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