Home / 807,324.06-1,211,013.79-427,731.33

Finding the Fourth Proportional to 807,324.06, 1,211,013.79 and 427,731.33

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Solution

The fourth proportional to 807,324.06, 1,211,013.79 and 427,731.33 is: 641,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,324.06 : 1,211,013.79 = 427,731.33 : x
  2. Step 2: Convert to fraction form
    807,324.06/1,211,013.79 = 427,731.33/x
  3. Step 3: Cross multiply
    807,324.06x = 1,211,013.79 × 427,731.33
  4. Step 4: Simplify right side
    807,324.06x = 517,988,542,517.01
  5. Step 5: Solve for x
    x = 517,988,542,517.01/807,324.06
  6. Step 6: Final answer
    x = 641,611.67

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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.