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Finding the Fourth Proportional to 629,517.24, 868,743.72 and 343,037.16

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Solution

The fourth proportional to 629,517.24, 868,743.72 and 343,037.16 is: 473,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,517.24 : 868,743.72 = 343,037.16 : x
  2. Step 2: Convert to fraction form
    629,517.24/868,743.72 = 343,037.16/x
  3. Step 3: Cross multiply
    629,517.24x = 868,743.72 × 343,037.16
  4. Step 4: Simplify right side
    629,517.24x = 298,011,378,476.64
  5. Step 5: Solve for x
    x = 298,011,378,476.64/629,517.24
  6. Step 6: Final answer
    x = 473,396.69

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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.