Home / 809,854.56-1,214,786.16-531,136.80

Finding the Fourth Proportional to 809,854.56, 1,214,786.16 and 531,136.80

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Solution

The fourth proportional to 809,854.56, 1,214,786.16 and 531,136.80 is: 796,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,854.56 : 1,214,786.16 = 531,136.80 : x
  2. Step 2: Convert to fraction form
    809,854.56/1,214,786.16 = 531,136.80/x
  3. Step 3: Cross multiply
    809,854.56x = 1,214,786.16 × 531,136.80
  4. Step 4: Simplify right side
    809,854.56x = 645,217,633,706.69
  5. Step 5: Solve for x
    x = 645,217,633,706.69/809,854.56
  6. Step 6: Final answer
    x = 796,708.03

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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.