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Finding the Fourth Proportional to 629,656.68, 868,927.14 and 343,177

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Solution

The fourth proportional to 629,656.68, 868,927.14 and 343,177 is: 473,584.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,656.68 : 868,927.14 = 343,177 : x
  2. Step 2: Convert to fraction form
    629,656.68/868,927.14 = 343,177/x
  3. Step 3: Cross multiply
    629,656.68x = 868,927.14 × 343,177
  4. Step 4: Simplify right side
    629,656.68x = 298,195,809,123.78
  5. Step 5: Solve for x
    x = 298,195,809,123.78/629,656.68
  6. Step 6: Final answer
    x = 473,584.76

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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.