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Finding the Fourth Proportional to 629,517.98, 868,735.92 and 343,038.07

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Solution

The fourth proportional to 629,517.98, 868,735.92 and 343,038.07 is: 473,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,517.98 : 868,735.92 = 343,038.07 : x
  2. Step 2: Convert to fraction form
    629,517.98/868,735.92 = 343,038.07/x
  3. Step 3: Cross multiply
    629,517.98x = 868,735.92 × 343,038.07
  4. Step 4: Simplify right side
    629,517.98x = 298,009,493,336.47
  5. Step 5: Solve for x
    x = 298,009,493,336.47/629,517.98
  6. Step 6: Final answer
    x = 473,393.14

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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.