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Finding the Fourth Proportional to 629,608.68, 868,834.62 and 343,122.57

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Solution

The fourth proportional to 629,608.68, 868,834.62 and 343,122.57 is: 473,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,608.68 : 868,834.62 = 343,122.57 : x
  2. Step 2: Convert to fraction form
    629,608.68/868,834.62 = 343,122.57/x
  3. Step 3: Cross multiply
    629,608.68x = 868,834.62 × 343,122.57
  4. Step 4: Simplify right side
    629,608.68x = 298,116,767,719.37
  5. Step 5: Solve for x
    x = 298,116,767,719.37/629,608.68
  6. Step 6: Final answer
    x = 473,495.33

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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.