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Finding the Fourth Proportional to 629,548.38, 868,775.44 and 343,067.78

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Solution

The fourth proportional to 629,548.38, 868,775.44 and 343,067.78 is: 473,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,548.38 : 868,775.44 = 343,067.78 : x
  2. Step 2: Convert to fraction form
    629,548.38/868,775.44 = 343,067.78/x
  3. Step 3: Cross multiply
    629,548.38x = 868,775.44 × 343,067.78
  4. Step 4: Simplify right side
    629,548.38x = 298,048,861,519.32
  5. Step 5: Solve for x
    x = 298,048,861,519.32/629,548.38
  6. Step 6: Final answer
    x = 473,432.81

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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.