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Finding the Fourth Proportional to 629,573.95, 868,786.72 and 343,087.88

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Solution

The fourth proportional to 629,573.95, 868,786.72 and 343,087.88 is: 473,447.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,573.95 : 868,786.72 = 343,087.88 : x
  2. Step 2: Convert to fraction form
    629,573.95/868,786.72 = 343,087.88/x
  3. Step 3: Cross multiply
    629,573.95x = 868,786.72 × 343,087.88
  4. Step 4: Simplify right side
    629,573.95x = 298,070,195,251.20
  5. Step 5: Solve for x
    x = 298,070,195,251.20/629,573.95
  6. Step 6: Final answer
    x = 473,447.47

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1.5x scale

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.