Home / 2,612,939.94-3,919,408.46-815,977.42

Finding the Fourth Proportional to 2,612,939.94, 3,919,408.46 and 815,977.42

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Solution

The fourth proportional to 2,612,939.94, 3,919,408.46 and 815,977.42 is: 1,223,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,939.94 : 3,919,408.46 = 815,977.42 : x
  2. Step 2: Convert to fraction form
    2,612,939.94/3,919,408.46 = 815,977.42/x
  3. Step 3: Cross multiply
    2,612,939.94x = 3,919,408.46 × 815,977.42
  4. Step 4: Simplify right side
    2,612,939.94x = 3,198,148,803,116.97
  5. Step 5: Solve for x
    x = 3,198,148,803,116.97/2,612,939.94
  6. Step 6: Final answer
    x = 1,223,965.68

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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.