Home / 1,283,449.80-1,923,101.10-809,286.60

Finding the Fourth Proportional to 1,283,449.80, 1,923,101.10 and 809,286.60

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Solution

The fourth proportional to 1,283,449.80, 1,923,101.10 and 809,286.60 is: 1,212,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,449.80 : 1,923,101.10 = 809,286.60 : x
  2. Step 2: Convert to fraction form
    1,283,449.80/1,923,101.10 = 809,286.60/x
  3. Step 3: Cross multiply
    1,283,449.80x = 1,923,101.10 × 809,286.60
  4. Step 4: Simplify right side
    1,283,449.80x = 1,556,339,950,675.26
  5. Step 5: Solve for x
    x = 1,556,339,950,675.26/1,283,449.80
  6. Step 6: Final answer
    x = 1,212,622.38

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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.