Home / 2,147,620.32-3,217,129.92-1,294,217.28

Finding the Fourth Proportional to 2,147,620.32, 3,217,129.92 and 1,294,217.28

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Solution

The fourth proportional to 2,147,620.32, 3,217,129.92 and 1,294,217.28 is: 1,938,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,620.32 : 3,217,129.92 = 1,294,217.28 : x
  2. Step 2: Convert to fraction form
    2,147,620.32/3,217,129.92 = 1,294,217.28/x
  3. Step 3: Cross multiply
    2,147,620.32x = 3,217,129.92 × 1,294,217.28
  4. Step 4: Simplify right side
    2,147,620.32x = 4,163,665,134,469.02
  5. Step 5: Solve for x
    x = 4,163,665,134,469.02/2,147,620.32
  6. Step 6: Final answer
    x = 1,938,734.28

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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.