Home / 722,233.80-1,083,350.70-438,798.60

Finding the Fourth Proportional to 722,233.80, 1,083,350.70 and 438,798.60

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Solution

The fourth proportional to 722,233.80, 1,083,350.70 and 438,798.60 is: 658,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,233.80 : 1,083,350.70 = 438,798.60 : x
  2. Step 2: Convert to fraction form
    722,233.80/1,083,350.70 = 438,798.60/x
  3. Step 3: Cross multiply
    722,233.80x = 1,083,350.70 × 438,798.60
  4. Step 4: Simplify right side
    722,233.80x = 475,372,770,469.02
  5. Step 5: Solve for x
    x = 475,372,770,469.02/722,233.80
  6. Step 6: Final answer
    x = 658,197.90

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Double scale
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Similar ratio
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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.