Home / 629,109.82-868,181.42-342,629.68

Finding the Fourth Proportional to 629,109.82, 868,181.42 and 342,629.68

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Solution

The fourth proportional to 629,109.82, 868,181.42 and 342,629.68 is: 472,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,109.82 : 868,181.42 = 342,629.68 : x
  2. Step 2: Convert to fraction form
    629,109.82/868,181.42 = 342,629.68/x
  3. Step 3: Cross multiply
    629,109.82x = 868,181.42 × 342,629.68
  4. Step 4: Simplify right side
    629,109.82x = 297,464,722,116.55
  5. Step 5: Solve for x
    x = 297,464,722,116.55/629,109.82
  6. Step 6: Final answer
    x = 472,834.33

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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.