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Finding the Fourth Proportional to 629,668.17, 868,960.29 and 343,206.81

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Solution

The fourth proportional to 629,668.17, 868,960.29 and 343,206.81 is: 473,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,668.17 : 868,960.29 = 343,206.81 : x
  2. Step 2: Convert to fraction form
    629,668.17/868,960.29 = 343,206.81/x
  3. Step 3: Cross multiply
    629,668.17x = 868,960.29 × 343,206.81
  4. Step 4: Simplify right side
    629,668.17x = 298,233,089,147.58
  5. Step 5: Solve for x
    x = 298,233,089,147.58/629,668.17
  6. Step 6: Final answer
    x = 473,635.33

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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.