Home / 2,120,551.35-3,180,759.28-681,228.88

Finding the Fourth Proportional to 2,120,551.35, 3,180,759.28 and 681,228.88

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Solution

The fourth proportional to 2,120,551.35, 3,180,759.28 and 681,228.88 is: 1,021,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,551.35 : 3,180,759.28 = 681,228.88 : x
  2. Step 2: Convert to fraction form
    2,120,551.35/3,180,759.28 = 681,228.88/x
  3. Step 3: Cross multiply
    2,120,551.35x = 3,180,759.28 × 681,228.88
  4. Step 4: Simplify right side
    2,120,551.35x = 2,166,825,093,932.72
  5. Step 5: Solve for x
    x = 2,166,825,093,932.72/2,120,551.35
  6. Step 6: Final answer
    x = 1,021,821.56

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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.