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Finding the Fourth Proportional to 629,991.84, 869,369.80 and 343,517.52

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Solution

The fourth proportional to 629,991.84, 869,369.80 and 343,517.52 is: 474,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,991.84 : 869,369.80 = 343,517.52 : x
  2. Step 2: Convert to fraction form
    629,991.84/869,369.80 = 343,517.52/x
  3. Step 3: Cross multiply
    629,991.84x = 869,369.80 × 343,517.52
  4. Step 4: Simplify right side
    629,991.84x = 298,643,757,658.90
  5. Step 5: Solve for x
    x = 298,643,757,658.90/629,991.84
  6. Step 6: Final answer
    x = 474,043.85

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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.