Home / 629,170.72-868,225.68-342,689.44

Finding the Fourth Proportional to 629,170.72, 868,225.68 and 342,689.44

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Solution

The fourth proportional to 629,170.72, 868,225.68 and 342,689.44 is: 472,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,170.72 : 868,225.68 = 342,689.44 : x
  2. Step 2: Convert to fraction form
    629,170.72/868,225.68 = 342,689.44/x
  3. Step 3: Cross multiply
    629,170.72x = 868,225.68 × 342,689.44
  4. Step 4: Simplify right side
    629,170.72x = 297,531,772,072.82
  5. Step 5: Solve for x
    x = 297,531,772,072.82/629,170.72
  6. Step 6: Final answer
    x = 472,895.13

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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.