Home / 722,234.80-1,083,352.20-438,799.60

Finding the Fourth Proportional to 722,234.80, 1,083,352.20 and 438,799.60

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Solution

The fourth proportional to 722,234.80, 1,083,352.20 and 438,799.60 is: 658,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,234.80 : 1,083,352.20 = 438,799.60 : x
  2. Step 2: Convert to fraction form
    722,234.80/1,083,352.20 = 438,799.60/x
  3. Step 3: Cross multiply
    722,234.80x = 1,083,352.20 × 438,799.60
  4. Step 4: Simplify right side
    722,234.80x = 475,374,512,019.12
  5. Step 5: Solve for x
    x = 475,374,512,019.12/722,234.80
  6. Step 6: Final answer
    x = 658,199.40

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Half scale
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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.