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Finding the Fourth Proportional to 667,634, 1,001,608.50 and 218,353.12

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Solution

The fourth proportional to 667,634, 1,001,608.50 and 218,353.12 is: 327,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,634 : 1,001,608.50 = 218,353.12 : x
  2. Step 2: Convert to fraction form
    667,634/1,001,608.50 = 218,353.12/x
  3. Step 3: Cross multiply
    667,634x = 1,001,608.50 × 218,353.12
  4. Step 4: Simplify right side
    667,634x = 218,704,340,993.52
  5. Step 5: Solve for x
    x = 218,704,340,993.52/667,634
  6. Step 6: Final answer
    x = 327,581.19

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1.5x scale

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.