Home / 2,189,704.10-3,021,883.47-1,259,412.12

Finding the Fourth Proportional to 2,189,704.10, 3,021,883.47 and 1,259,412.12

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Solution

The fourth proportional to 2,189,704.10, 3,021,883.47 and 1,259,412.12 is: 1,738,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,704.10 : 3,021,883.47 = 1,259,412.12 : x
  2. Step 2: Convert to fraction form
    2,189,704.10/3,021,883.47 = 1,259,412.12/x
  3. Step 3: Cross multiply
    2,189,704.10x = 3,021,883.47 × 1,259,412.12
  4. Step 4: Simplify right side
    2,189,704.10x = 3,805,796,667,345.66
  5. Step 5: Solve for x
    x = 3,805,796,667,345.66/2,189,704.10
  6. Step 6: Final answer
    x = 1,738,041.53

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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.