Home / 809,855.56-1,214,787.66-531,137.80

Finding the Fourth Proportional to 809,855.56, 1,214,787.66 and 531,137.80

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Solution

The fourth proportional to 809,855.56, 1,214,787.66 and 531,137.80 is: 796,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,855.56 : 1,214,787.66 = 531,137.80 : x
  2. Step 2: Convert to fraction form
    809,855.56/1,214,787.66 = 531,137.80/x
  3. Step 3: Cross multiply
    809,855.56x = 1,214,787.66 × 531,137.80
  4. Step 4: Simplify right side
    809,855.56x = 645,219,645,199.55
  5. Step 5: Solve for x
    x = 645,219,645,199.55/809,855.56
  6. Step 6: Final answer
    x = 796,709.53

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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.