Home / 2,189,628.08-3,021,627.88-1,222,731.44

Finding the Fourth Proportional to 2,189,628.08, 3,021,627.88 and 1,222,731.44

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Solution

The fourth proportional to 2,189,628.08, 3,021,627.88 and 1,222,731.44 is: 1,687,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,628.08 : 3,021,627.88 = 1,222,731.44 : x
  2. Step 2: Convert to fraction form
    2,189,628.08/3,021,627.88 = 1,222,731.44/x
  3. Step 3: Cross multiply
    2,189,628.08x = 3,021,627.88 × 1,222,731.44
  4. Step 4: Simplify right side
    2,189,628.08x = 3,694,639,408,856.55
  5. Step 5: Solve for x
    x = 3,694,639,408,856.55/2,189,628.08
  6. Step 6: Final answer
    x = 1,687,336.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.