Home / 694,747.40-1,042,121.10-221,480.60

Finding the Fourth Proportional to 694,747.40, 1,042,121.10 and 221,480.60

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Solution

The fourth proportional to 694,747.40, 1,042,121.10 and 221,480.60 is: 332,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,747.40 : 1,042,121.10 = 221,480.60 : x
  2. Step 2: Convert to fraction form
    694,747.40/1,042,121.10 = 221,480.60/x
  3. Step 3: Cross multiply
    694,747.40x = 1,042,121.10 × 221,480.60
  4. Step 4: Simplify right side
    694,747.40x = 230,809,606,500.66
  5. Step 5: Solve for x
    x = 230,809,606,500.66/694,747.40
  6. Step 6: Final answer
    x = 332,220.90

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Double scale
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1.5x scale

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.