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Finding the Fourth Proportional to 816,574.78, 1,224,782.96 and 247,960.80

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Solution

The fourth proportional to 816,574.78, 1,224,782.96 and 247,960.80 is: 371,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,574.78 : 1,224,782.96 = 247,960.80 : x
  2. Step 2: Convert to fraction form
    816,574.78/1,224,782.96 = 247,960.80/x
  3. Step 3: Cross multiply
    816,574.78x = 1,224,782.96 × 247,960.80
  4. Step 4: Simplify right side
    816,574.78x = 303,698,162,587.97
  5. Step 5: Solve for x
    x = 303,698,162,587.97/816,574.78
  6. Step 6: Final answer
    x = 371,917.15

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