Home / 2,189,363.40-3,282,489.90-991,859.40

Finding the Fourth Proportional to 2,189,363.40, 3,282,489.90 and 991,859.40

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Solution

The fourth proportional to 2,189,363.40, 3,282,489.90 and 991,859.40 is: 1,487,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,363.40 : 3,282,489.90 = 991,859.40 : x
  2. Step 2: Convert to fraction form
    2,189,363.40/3,282,489.90 = 991,859.40/x
  3. Step 3: Cross multiply
    2,189,363.40x = 3,282,489.90 × 991,859.40
  4. Step 4: Simplify right side
    2,189,363.40x = 3,255,768,462,720.06
  5. Step 5: Solve for x
    x = 3,255,768,462,720.06/2,189,363.40
  6. Step 6: Final answer
    x = 1,487,084.54

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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.