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Finding the Fourth Proportional to 678,662.88, 1,018,119.44 and 223,279.71

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Solution

The fourth proportional to 678,662.88, 1,018,119.44 and 223,279.71 is: 334,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,662.88 : 1,018,119.44 = 223,279.71 : x
  2. Step 2: Convert to fraction form
    678,662.88/1,018,119.44 = 223,279.71/x
  3. Step 3: Cross multiply
    678,662.88x = 1,018,119.44 × 223,279.71
  4. Step 4: Simplify right side
    678,662.88x = 227,325,413,308.56
  5. Step 5: Solve for x
    x = 227,325,413,308.56/678,662.88
  6. Step 6: Final answer
    x = 334,960.73

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