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Finding the Fourth Proportional to 389,713.18, 584,586.78 and 123,493.33

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Solution

The fourth proportional to 389,713.18, 584,586.78 and 123,493.33 is: 185,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,713.18 : 584,586.78 = 123,493.33 : x
  2. Step 2: Convert to fraction form
    389,713.18/584,586.78 = 123,493.33/x
  3. Step 3: Cross multiply
    389,713.18x = 584,586.78 × 123,493.33
  4. Step 4: Simplify right side
    389,713.18x = 72,192,568,136.18
  5. Step 5: Solve for x
    x = 72,192,568,136.18/389,713.18
  6. Step 6: Final answer
    x = 185,245.39

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