Home / 2,019,540-2,786,901.21-1,148,469.38

Finding the Fourth Proportional to 2,019,540, 2,786,901.21 and 1,148,469.38

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Solution

The fourth proportional to 2,019,540, 2,786,901.21 and 1,148,469.38 is: 1,584,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,540 : 2,786,901.21 = 1,148,469.38 : x
  2. Step 2: Convert to fraction form
    2,019,540/2,786,901.21 = 1,148,469.38/x
  3. Step 3: Cross multiply
    2,019,540x = 2,786,901.21 × 1,148,469.38
  4. Step 4: Simplify right side
    2,019,540x = 3,200,670,690,835.44
  5. Step 5: Solve for x
    x = 3,200,670,690,835.44/2,019,540
  6. Step 6: Final answer
    x = 1,584,851.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.