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Finding the Fourth Proportional to 2,629,379.82, 3,943,673.37 and 832,029.78

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Solution

The fourth proportional to 2,629,379.82, 3,943,673.37 and 832,029.78 is: 1,247,919.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,379.82 : 3,943,673.37 = 832,029.78 : x
  2. Step 2: Convert to fraction form
    2,629,379.82/3,943,673.37 = 832,029.78/x
  3. Step 3: Cross multiply
    2,629,379.82x = 3,943,673.37 × 832,029.78
  4. Step 4: Simplify right side
    2,629,379.82x = 3,281,253,686,432.96
  5. Step 5: Solve for x
    x = 3,281,253,686,432.96/2,629,379.82
  6. Step 6: Final answer
    x = 1,247,919.25

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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.