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Finding the Fourth Proportional to 667,798.80, 1,002,027.07 and 312,751.50

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Solution

The fourth proportional to 667,798.80, 1,002,027.07 and 312,751.50 is: 469,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,798.80 : 1,002,027.07 = 312,751.50 : x
  2. Step 2: Convert to fraction form
    667,798.80/1,002,027.07 = 312,751.50/x
  3. Step 3: Cross multiply
    667,798.80x = 1,002,027.07 × 312,751.50
  4. Step 4: Simplify right side
    667,798.80x = 313,385,469,183.11
  5. Step 5: Solve for x
    x = 313,385,469,183.11/667,798.80
  6. Step 6: Final answer
    x = 469,281.27

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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.