Home / 2,612,944.45-3,919,415.22-815,981.92

Finding the Fourth Proportional to 2,612,944.45, 3,919,415.22 and 815,981.92

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Solution

The fourth proportional to 2,612,944.45, 3,919,415.22 and 815,981.92 is: 1,223,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,944.45 : 3,919,415.22 = 815,981.92 : x
  2. Step 2: Convert to fraction form
    2,612,944.45/3,919,415.22 = 815,981.92/x
  3. Step 3: Cross multiply
    2,612,944.45x = 3,919,415.22 × 815,981.92
  4. Step 4: Simplify right side
    2,612,944.45x = 3,198,171,956,492.82
  5. Step 5: Solve for x
    x = 3,198,171,956,492.82/2,612,944.45
  6. Step 6: Final answer
    x = 1,223,972.43

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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.