Home / 804,401.80-1,206,516.30-213,425.80

Finding the Fourth Proportional to 804,401.80, 1,206,516.30 and 213,425.80

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Solution

The fourth proportional to 804,401.80, 1,206,516.30 and 213,425.80 is: 320,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,401.80 : 1,206,516.30 = 213,425.80 : x
  2. Step 2: Convert to fraction form
    804,401.80/1,206,516.30 = 213,425.80/x
  3. Step 3: Cross multiply
    804,401.80x = 1,206,516.30 × 213,425.80
  4. Step 4: Simplify right side
    804,401.80x = 257,501,706,540.54
  5. Step 5: Solve for x
    x = 257,501,706,540.54/804,401.80
  6. Step 6: Final answer
    x = 320,115.78

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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.