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Finding the Fourth Proportional to 492,983.20, 739,474.80 and 416,000.80

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Solution

The fourth proportional to 492,983.20, 739,474.80 and 416,000.80 is: 624,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,983.20 : 739,474.80 = 416,000.80 : x
  2. Step 2: Convert to fraction form
    492,983.20/739,474.80 = 416,000.80/x
  3. Step 3: Cross multiply
    492,983.20x = 739,474.80 × 416,000.80
  4. Step 4: Simplify right side
    492,983.20x = 307,622,108,379.84
  5. Step 5: Solve for x
    x = 307,622,108,379.84/492,983.20
  6. Step 6: Final answer
    x = 624,001.20

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