Home / 2,640,919.74-3,961,947.95-819,248.37

Finding the Fourth Proportional to 2,640,919.74, 3,961,947.95 and 819,248.37

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Solution

The fourth proportional to 2,640,919.74, 3,961,947.95 and 819,248.37 is: 1,229,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,919.74 : 3,961,947.95 = 819,248.37 : x
  2. Step 2: Convert to fraction form
    2,640,919.74/3,961,947.95 = 819,248.37/x
  3. Step 3: Cross multiply
    2,640,919.74x = 3,961,947.95 × 819,248.37
  4. Step 4: Simplify right side
    2,640,919.74x = 3,245,819,376,156.36
  5. Step 5: Solve for x
    x = 3,245,819,376,156.36/2,640,919.74
  6. Step 6: Final answer
    x = 1,229,048.85

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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.