Home / 2,099,143.20-3,149,103.60-679,245.60

Finding the Fourth Proportional to 2,099,143.20, 3,149,103.60 and 679,245.60

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Solution

The fourth proportional to 2,099,143.20, 3,149,103.60 and 679,245.60 is: 1,018,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,143.20 : 3,149,103.60 = 679,245.60 : x
  2. Step 2: Convert to fraction form
    2,099,143.20/3,149,103.60 = 679,245.60/x
  3. Step 3: Cross multiply
    2,099,143.20x = 3,149,103.60 × 679,245.60
  4. Step 4: Simplify right side
    2,099,143.20x = 2,139,014,764,244.16
  5. Step 5: Solve for x
    x = 2,139,014,764,244.16/2,099,143.20
  6. Step 6: Final answer
    x = 1,018,994.21

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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.