Home / 1,259,037.73-1,886,976.46-991,742.59

Finding the Fourth Proportional to 1,259,037.73, 1,886,976.46 and 991,742.59

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Solution

The fourth proportional to 1,259,037.73, 1,886,976.46 and 991,742.59 is: 1,486,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,037.73 : 1,886,976.46 = 991,742.59 : x
  2. Step 2: Convert to fraction form
    1,259,037.73/1,886,976.46 = 991,742.59/x
  3. Step 3: Cross multiply
    1,259,037.73x = 1,886,976.46 × 991,742.59
  4. Step 4: Simplify right side
    1,259,037.73x = 1,871,394,921,709.43
  5. Step 5: Solve for x
    x = 1,871,394,921,709.43/1,259,037.73
  6. Step 6: Final answer
    x = 1,486,369.21

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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.