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Finding the Fourth Proportional to 496,734.63, 685,474.74 and 281,861.88

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Solution

The fourth proportional to 496,734.63, 685,474.74 and 281,861.88 is: 388,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,734.63 : 685,474.74 = 281,861.88 : x
  2. Step 2: Convert to fraction form
    496,734.63/685,474.74 = 281,861.88/x
  3. Step 3: Cross multiply
    496,734.63x = 685,474.74 × 281,861.88
  4. Step 4: Simplify right side
    496,734.63x = 193,209,198,908.91
  5. Step 5: Solve for x
    x = 193,209,198,908.91/496,734.63
  6. Step 6: Final answer
    x = 388,958.59

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