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Finding the Fourth Proportional to 516,559.91, 712,818.08 and 287,102.30

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Solution

The fourth proportional to 516,559.91, 712,818.08 and 287,102.30 is: 396,181.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,559.91 : 712,818.08 = 287,102.30 : x
  2. Step 2: Convert to fraction form
    516,559.91/712,818.08 = 287,102.30/x
  3. Step 3: Cross multiply
    516,559.91x = 712,818.08 × 287,102.30
  4. Step 4: Simplify right side
    516,559.91x = 204,651,705,249.98
  5. Step 5: Solve for x
    x = 204,651,705,249.98/516,559.91
  6. Step 6: Final answer
    x = 396,181.94

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