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Finding the Fourth Proportional to 629,793.44, 869,112.48 and 343,312.64

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Solution

The fourth proportional to 629,793.44, 869,112.48 and 343,312.64 is: 473,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,793.44 : 869,112.48 = 343,312.64 : x
  2. Step 2: Convert to fraction form
    629,793.44/869,112.48 = 343,312.64/x
  3. Step 3: Cross multiply
    629,793.44x = 869,112.48 × 343,312.64
  4. Step 4: Simplify right side
    629,793.44x = 298,377,299,965.75
  5. Step 5: Solve for x
    x = 298,377,299,965.75/629,793.44
  6. Step 6: Final answer
    x = 473,770.10

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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.