Home / 823,999.90-1,235,999.85-263,091.10

Finding the Fourth Proportional to 823,999.90, 1,235,999.85 and 263,091.10

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Solution

The fourth proportional to 823,999.90, 1,235,999.85 and 263,091.10 is: 394,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,999.90 : 1,235,999.85 = 263,091.10 : x
  2. Step 2: Convert to fraction form
    823,999.90/1,235,999.85 = 263,091.10/x
  3. Step 3: Cross multiply
    823,999.90x = 1,235,999.85 × 263,091.10
  4. Step 4: Simplify right side
    823,999.90x = 325,180,560,136.34
  5. Step 5: Solve for x
    x = 325,180,560,136.34/823,999.90
  6. Step 6: Final answer
    x = 394,636.65

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Similar ratio
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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.