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Finding the Fourth Proportional to 668,853.54, 1,003,608.36 and 313,896.42

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Solution

The fourth proportional to 668,853.54, 1,003,608.36 and 313,896.42 is: 470,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,853.54 : 1,003,608.36 = 313,896.42 : x
  2. Step 2: Convert to fraction form
    668,853.54/1,003,608.36 = 313,896.42/x
  3. Step 3: Cross multiply
    668,853.54x = 1,003,608.36 × 313,896.42
  4. Step 4: Simplify right side
    668,853.54x = 315,029,071,286.07
  5. Step 5: Solve for x
    x = 315,029,071,286.07/668,853.54
  6. Step 6: Final answer
    x = 470,998.59

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