Home / 2,189,703.60-3,021,882.78-1,259,411.62

Finding the Fourth Proportional to 2,189,703.60, 3,021,882.78 and 1,259,411.62

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Solution

The fourth proportional to 2,189,703.60, 3,021,882.78 and 1,259,411.62 is: 1,738,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,703.60 : 3,021,882.78 = 1,259,411.62 : x
  2. Step 2: Convert to fraction form
    2,189,703.60/3,021,882.78 = 1,259,411.62/x
  3. Step 3: Cross multiply
    2,189,703.60x = 3,021,882.78 × 1,259,411.62
  4. Step 4: Simplify right side
    2,189,703.60x = 3,805,794,287,409.90
  5. Step 5: Solve for x
    x = 3,805,794,287,409.90/2,189,703.60
  6. Step 6: Final answer
    x = 1,738,040.84

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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.