Home / 1,212,561.43-1,819,134.32-454,409.61

Finding the Fourth Proportional to 1,212,561.43, 1,819,134.32 and 454,409.61

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Solution

The fourth proportional to 1,212,561.43, 1,819,134.32 and 454,409.61 is: 681,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,561.43 : 1,819,134.32 = 454,409.61 : x
  2. Step 2: Convert to fraction form
    1,212,561.43/1,819,134.32 = 454,409.61/x
  3. Step 3: Cross multiply
    1,212,561.43x = 1,819,134.32 × 454,409.61
  4. Step 4: Simplify right side
    1,212,561.43x = 826,632,107,795.01
  5. Step 5: Solve for x
    x = 826,632,107,795.01/1,212,561.43
  6. Step 6: Final answer
    x = 681,723.90

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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.