Home / 822,902.40-1,234,353.60-261,993.60

Finding the Fourth Proportional to 822,902.40, 1,234,353.60 and 261,993.60

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Solution

The fourth proportional to 822,902.40, 1,234,353.60 and 261,993.60 is: 392,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,902.40 : 1,234,353.60 = 261,993.60 : x
  2. Step 2: Convert to fraction form
    822,902.40/1,234,353.60 = 261,993.60/x
  3. Step 3: Cross multiply
    822,902.40x = 1,234,353.60 × 261,993.60
  4. Step 4: Simplify right side
    822,902.40x = 323,392,743,336.96
  5. Step 5: Solve for x
    x = 323,392,743,336.96/822,902.40
  6. Step 6: Final answer
    x = 392,990.40

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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.