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Finding the Fourth Proportional to 629,053.76, 868,088.22 and 342,578.63

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Solution

The fourth proportional to 629,053.76, 868,088.22 and 342,578.63 is: 472,755.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,053.76 : 868,088.22 = 342,578.63 : x
  2. Step 2: Convert to fraction form
    629,053.76/868,088.22 = 342,578.63/x
  3. Step 3: Cross multiply
    629,053.76x = 868,088.22 × 342,578.63
  4. Step 4: Simplify right side
    629,053.76x = 297,388,468,786.30
  5. Step 5: Solve for x
    x = 297,388,468,786.30/629,053.76
  6. Step 6: Final answer
    x = 472,755.26

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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.