Home / 1,997,371.50-2,756,540.60-1,222,998.54

Finding the Fourth Proportional to 1,997,371.50, 2,756,540.60 and 1,222,998.54

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Solution

The fourth proportional to 1,997,371.50, 2,756,540.60 and 1,222,998.54 is: 1,687,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,371.50 : 2,756,540.60 = 1,222,998.54 : x
  2. Step 2: Convert to fraction form
    1,997,371.50/2,756,540.60 = 1,222,998.54/x
  3. Step 3: Cross multiply
    1,997,371.50x = 2,756,540.60 × 1,222,998.54
  4. Step 4: Simplify right side
    1,997,371.50x = 3,371,245,129,250.72
  5. Step 5: Solve for x
    x = 3,371,245,129,250.72/1,997,371.50
  6. Step 6: Final answer
    x = 1,687,840.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.