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Finding the Fourth Proportional to 578,786.37, 868,475.96 and 275,523.75

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Solution

The fourth proportional to 578,786.37, 868,475.96 and 275,523.75 is: 413,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,786.37 : 868,475.96 = 275,523.75 : x
  2. Step 2: Convert to fraction form
    578,786.37/868,475.96 = 275,523.75/x
  3. Step 3: Cross multiply
    578,786.37x = 868,475.96 × 275,523.75
  4. Step 4: Simplify right side
    578,786.37x = 239,285,751,906.43
  5. Step 5: Solve for x
    x = 239,285,751,906.43/578,786.37
  6. Step 6: Final answer
    x = 413,426.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.