Home / 2,099,147.20-3,149,109.60-679,249.60

Finding the Fourth Proportional to 2,099,147.20, 3,149,109.60 and 679,249.60

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Solution

The fourth proportional to 2,099,147.20, 3,149,109.60 and 679,249.60 is: 1,019,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,147.20 : 3,149,109.60 = 679,249.60 : x
  2. Step 2: Convert to fraction form
    2,099,147.20/3,149,109.60 = 679,249.60/x
  3. Step 3: Cross multiply
    2,099,147.20x = 3,149,109.60 × 679,249.60
  4. Step 4: Simplify right side
    2,099,147.20x = 2,139,031,436,156.16
  5. Step 5: Solve for x
    x = 2,139,031,436,156.16/2,099,147.20
  6. Step 6: Final answer
    x = 1,019,000.21

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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.