Home / 1,212,977.55-1,819,211.18-613,375.05

Finding the Fourth Proportional to 1,212,977.55, 1,819,211.18 and 613,375.05

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Solution

The fourth proportional to 1,212,977.55, 1,819,211.18 and 613,375.05 is: 919,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,977.55 : 1,819,211.18 = 613,375.05 : x
  2. Step 2: Convert to fraction form
    1,212,977.55/1,819,211.18 = 613,375.05/x
  3. Step 3: Cross multiply
    1,212,977.55x = 1,819,211.18 × 613,375.05
  4. Step 4: Simplify right side
    1,212,977.55x = 1,115,858,745,426.18
  5. Step 5: Solve for x
    x = 1,115,858,745,426.18/1,212,977.55
  6. Step 6: Final answer
    x = 919,933.55

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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.