Home / 897,391.44-1,345,795.90-298,191.78

Finding the Fourth Proportional to 897,391.44, 1,345,795.90 and 298,191.78

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Solution

The fourth proportional to 897,391.44, 1,345,795.90 and 298,191.78 is: 447,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,391.44 : 1,345,795.90 = 298,191.78 : x
  2. Step 2: Convert to fraction form
    897,391.44/1,345,795.90 = 298,191.78/x
  3. Step 3: Cross multiply
    897,391.44x = 1,345,795.90 × 298,191.78
  4. Step 4: Simplify right side
    897,391.44x = 401,305,274,192.22
  5. Step 5: Solve for x
    x = 401,305,274,192.22/897,391.44
  6. Step 6: Final answer
    x = 447,190.89

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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.