Home / 2,618,895.16-3,928,508.84-821,849.56

Finding the Fourth Proportional to 2,618,895.16, 3,928,508.84 and 821,849.56

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Solution

The fourth proportional to 2,618,895.16, 3,928,508.84 and 821,849.56 is: 1,232,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,895.16 : 3,928,508.84 = 821,849.56 : x
  2. Step 2: Convert to fraction form
    2,618,895.16/3,928,508.84 = 821,849.56/x
  3. Step 3: Cross multiply
    2,618,895.16x = 3,928,508.84 × 821,849.56
  4. Step 4: Simplify right side
    2,618,895.16x = 3,228,643,261,610.11
  5. Step 5: Solve for x
    x = 3,228,643,261,610.11/2,618,895.16
  6. Step 6: Final answer
    x = 1,232,826.46

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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.