Home / 721,902.60-1,082,853.90-367,608.60

Finding the Fourth Proportional to 721,902.60, 1,082,853.90 and 367,608.60

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Solution

The fourth proportional to 721,902.60, 1,082,853.90 and 367,608.60 is: 551,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,902.60 : 1,082,853.90 = 367,608.60 : x
  2. Step 2: Convert to fraction form
    721,902.60/1,082,853.90 = 367,608.60/x
  3. Step 3: Cross multiply
    721,902.60x = 1,082,853.90 × 367,608.60
  4. Step 4: Simplify right side
    721,902.60x = 398,066,406,183.54
  5. Step 5: Solve for x
    x = 398,066,406,183.54/721,902.60
  6. Step 6: Final answer
    x = 551,412.90

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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.