Home / 2,099,138.20-3,149,096.10-679,240.60

Finding the Fourth Proportional to 2,099,138.20, 3,149,096.10 and 679,240.60

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Solution

The fourth proportional to 2,099,138.20, 3,149,096.10 and 679,240.60 is: 1,018,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,138.20 : 3,149,096.10 = 679,240.60 : x
  2. Step 2: Convert to fraction form
    2,099,138.20/3,149,096.10 = 679,240.60/x
  3. Step 3: Cross multiply
    2,099,138.20x = 3,149,096.10 × 679,240.60
  4. Step 4: Simplify right side
    2,099,138.20x = 2,138,993,924,421.66
  5. Step 5: Solve for x
    x = 2,138,993,924,421.66/2,099,138.20
  6. Step 6: Final answer
    x = 1,018,986.71

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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.