Home / 3,245,138.28-4,860,254.22-1,620,921.72

Finding the Fourth Proportional to 3,245,138.28, 4,860,254.22 and 1,620,921.72

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Solution

The fourth proportional to 3,245,138.28, 4,860,254.22 and 1,620,921.72 is: 2,427,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245,138.28 : 4,860,254.22 = 1,620,921.72 : x
  2. Step 2: Convert to fraction form
    3,245,138.28/4,860,254.22 = 1,620,921.72/x
  3. Step 3: Cross multiply
    3,245,138.28x = 4,860,254.22 × 1,620,921.72
  4. Step 4: Simplify right side
    3,245,138.28x = 7,878,091,629,919.66
  5. Step 5: Solve for x
    x = 7,878,091,629,919.66/3,245,138.28
  6. Step 6: Final answer
    x = 2,427,659.76

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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.