Home / 2,138,921.88-3,208,580.76-699,613.44

Finding the Fourth Proportional to 2,138,921.88, 3,208,580.76 and 699,613.44

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Solution

The fourth proportional to 2,138,921.88, 3,208,580.76 and 699,613.44 is: 1,049,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,921.88 : 3,208,580.76 = 699,613.44 : x
  2. Step 2: Convert to fraction form
    2,138,921.88/3,208,580.76 = 699,613.44/x
  3. Step 3: Cross multiply
    2,138,921.88x = 3,208,580.76 × 699,613.44
  4. Step 4: Simplify right side
    2,138,921.88x = 2,244,766,223,021.41
  5. Step 5: Solve for x
    x = 2,244,766,223,021.41/2,138,921.88
  6. Step 6: Final answer
    x = 1,049,484.90

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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.