Home / 2,618,860.15-3,928,456.26-821,814.55

Finding the Fourth Proportional to 2,618,860.15, 3,928,456.26 and 821,814.55

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Solution

The fourth proportional to 2,618,860.15, 3,928,456.26 and 821,814.55 is: 1,232,773.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,860.15 : 3,928,456.26 = 821,814.55 : x
  2. Step 2: Convert to fraction form
    2,618,860.15/3,928,456.26 = 821,814.55/x
  3. Step 3: Cross multiply
    2,618,860.15x = 3,928,456.26 × 821,814.55
  4. Step 4: Simplify right side
    2,618,860.15x = 3,228,462,489,755.23
  5. Step 5: Solve for x
    x = 3,228,462,489,755.23/2,618,860.15
  6. Step 6: Final answer
    x = 1,232,773.92

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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.