Home / 629,629.89-868,863.94-343,143.82

Finding the Fourth Proportional to 629,629.89, 868,863.94 and 343,143.82

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Solution

The fourth proportional to 629,629.89, 868,863.94 and 343,143.82 is: 473,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,629.89 : 868,863.94 = 343,143.82 : x
  2. Step 2: Convert to fraction form
    629,629.89/868,863.94 = 343,143.82/x
  3. Step 3: Cross multiply
    629,629.89x = 868,863.94 × 343,143.82
  4. Step 4: Simplify right side
    629,629.89x = 298,145,291,431.85
  5. Step 5: Solve for x
    x = 298,145,291,431.85/629,629.89
  6. Step 6: Final answer
    x = 473,524.68

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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.