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Finding the Fourth Proportional to 520,080.75, 780,328.08 and 200,146.73

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Solution

The fourth proportional to 520,080.75, 780,328.08 and 200,146.73 is: 300,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,080.75 : 780,328.08 = 200,146.73 : x
  2. Step 2: Convert to fraction form
    520,080.75/780,328.08 = 200,146.73/x
  3. Step 3: Cross multiply
    520,080.75x = 780,328.08 × 200,146.73
  4. Step 4: Simplify right side
    520,080.75x = 156,180,109,637.54
  5. Step 5: Solve for x
    x = 156,180,109,637.54/520,080.75
  6. Step 6: Final answer
    x = 300,299.73

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