Home / 820,494.89-1,230,105.06-531,696.45

Finding the Fourth Proportional to 820,494.89, 1,230,105.06 and 531,696.45

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Solution

The fourth proportional to 820,494.89, 1,230,105.06 and 531,696.45 is: 797,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,494.89 : 1,230,105.06 = 531,696.45 : x
  2. Step 2: Convert to fraction form
    820,494.89/1,230,105.06 = 531,696.45/x
  3. Step 3: Cross multiply
    820,494.89x = 1,230,105.06 × 531,696.45
  4. Step 4: Simplify right side
    820,494.89x = 654,042,493,529.04
  5. Step 5: Solve for x
    x = 654,042,493,529.04/820,494.89
  6. Step 6: Final answer
    x = 797,131.71

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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.