Home / 2,612,952.92-3,919,427.94-815,990.42

Finding the Fourth Proportional to 2,612,952.92, 3,919,427.94 and 815,990.42

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Solution

The fourth proportional to 2,612,952.92, 3,919,427.94 and 815,990.42 is: 1,223,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,952.92 : 3,919,427.94 = 815,990.42 : x
  2. Step 2: Convert to fraction form
    2,612,952.92/3,919,427.94 = 815,990.42/x
  3. Step 3: Cross multiply
    2,612,952.92x = 3,919,427.94 × 815,990.42
  4. Step 4: Simplify right side
    2,612,952.92x = 3,198,215,650,920.34
  5. Step 5: Solve for x
    x = 3,198,215,650,920.34/2,612,952.92
  6. Step 6: Final answer
    x = 1,223,985.18

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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.