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Finding the Fourth Proportional to 629,679.96, 868,932.90 and 343,193.88

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Solution

The fourth proportional to 629,679.96, 868,932.90 and 343,193.88 is: 473,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,679.96 : 868,932.90 = 343,193.88 : x
  2. Step 2: Convert to fraction form
    629,679.96/868,932.90 = 343,193.88/x
  3. Step 3: Cross multiply
    629,679.96x = 868,932.90 × 343,193.88
  4. Step 4: Simplify right side
    629,679.96x = 298,212,453,410.65
  5. Step 5: Solve for x
    x = 298,212,453,410.65/629,679.96
  6. Step 6: Final answer
    x = 473,593.69

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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.