Home / 2,189,692.77-3,021,867.82-1,259,400.77

Finding the Fourth Proportional to 2,189,692.77, 3,021,867.82 and 1,259,400.77

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Solution

The fourth proportional to 2,189,692.77, 3,021,867.82 and 1,259,400.77 is: 1,738,025.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,692.77 : 3,021,867.82 = 1,259,400.77 : x
  2. Step 2: Convert to fraction form
    2,189,692.77/3,021,867.82 = 1,259,400.77/x
  3. Step 3: Cross multiply
    2,189,692.77x = 3,021,867.82 × 1,259,400.77
  4. Step 4: Simplify right side
    2,189,692.77x = 3,805,742,659,346.22
  5. Step 5: Solve for x
    x = 3,805,742,659,346.22/2,189,692.77
  6. Step 6: Final answer
    x = 1,738,025.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.