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Finding the Fourth Proportional to 629,579.94, 868,819.01 and 343,099.35

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Solution

The fourth proportional to 629,579.94, 868,819.01 and 343,099.35 is: 473,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,579.94 : 868,819.01 = 343,099.35 : x
  2. Step 2: Convert to fraction form
    629,579.94/868,819.01 = 343,099.35/x
  3. Step 3: Cross multiply
    629,579.94x = 868,819.01 × 343,099.35
  4. Step 4: Simplify right side
    629,579.94x = 298,091,235,883.15
  5. Step 5: Solve for x
    x = 298,091,235,883.15/629,579.94
  6. Step 6: Final answer
    x = 473,476.39

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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.