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Finding the Fourth Proportional to 667,798.87, 1,002,027.16 and 312,751.57

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Solution

The fourth proportional to 667,798.87, 1,002,027.16 and 312,751.57 is: 469,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,798.87 : 1,002,027.16 = 312,751.57 : x
  2. Step 2: Convert to fraction form
    667,798.87/1,002,027.16 = 312,751.57/x
  3. Step 3: Cross multiply
    667,798.87x = 1,002,027.16 × 312,751.57
  4. Step 4: Simplify right side
    667,798.87x = 313,385,567,472.64
  5. Step 5: Solve for x
    x = 313,385,567,472.64/667,798.87
  6. Step 6: Final answer
    x = 469,281.37

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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.