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Finding the Fourth Proportional to 456,805.80, 685,251.90 and 124,381.80

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Solution

The fourth proportional to 456,805.80, 685,251.90 and 124,381.80 is: 186,584.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,805.80 : 685,251.90 = 124,381.80 : x
  2. Step 2: Convert to fraction form
    456,805.80/685,251.90 = 124,381.80/x
  3. Step 3: Cross multiply
    456,805.80x = 685,251.90 × 124,381.80
  4. Step 4: Simplify right side
    456,805.80x = 85,232,864,775.42
  5. Step 5: Solve for x
    x = 85,232,864,775.42/456,805.80
  6. Step 6: Final answer
    x = 186,584.46

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