Home / 2,618,862.33-3,928,459.55-821,816.73

Finding the Fourth Proportional to 2,618,862.33, 3,928,459.55 and 821,816.73

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Solution

The fourth proportional to 2,618,862.33, 3,928,459.55 and 821,816.73 is: 1,232,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,862.33 : 3,928,459.55 = 821,816.73 : x
  2. Step 2: Convert to fraction form
    2,618,862.33/3,928,459.55 = 821,816.73/x
  3. Step 3: Cross multiply
    2,618,862.33x = 3,928,459.55 × 821,816.73
  4. Step 4: Simplify right side
    2,618,862.33x = 3,228,473,777,209.19
  5. Step 5: Solve for x
    x = 3,228,473,777,209.19/2,618,862.33
  6. Step 6: Final answer
    x = 1,232,777.20

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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.