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Finding the Fourth Proportional to 629,613.68, 868,841.52 and 343,127.58

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Solution

The fourth proportional to 629,613.68, 868,841.52 and 343,127.58 is: 473,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,613.68 : 868,841.52 = 343,127.58 : x
  2. Step 2: Convert to fraction form
    629,613.68/868,841.52 = 343,127.58/x
  3. Step 3: Cross multiply
    629,613.68x = 868,841.52 × 343,127.58
  4. Step 4: Simplify right side
    629,613.68x = 298,123,488,161.12
  5. Step 5: Solve for x
    x = 298,123,488,161.12/629,613.68
  6. Step 6: Final answer
    x = 473,502.24

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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.