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Finding the Fourth Proportional to 694,082.72, 957,942.45 and 422,235.89

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Solution

The fourth proportional to 694,082.72, 957,942.45 and 422,235.89 is: 582,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,082.72 : 957,942.45 = 422,235.89 : x
  2. Step 2: Convert to fraction form
    694,082.72/957,942.45 = 422,235.89/x
  3. Step 3: Cross multiply
    694,082.72x = 957,942.45 × 422,235.89
  4. Step 4: Simplify right side
    694,082.72x = 404,477,681,747.10
  5. Step 5: Solve for x
    x = 404,477,681,747.10/694,082.72
  6. Step 6: Final answer
    x = 582,751.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.