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Finding the Fourth Proportional to 629,668.96, 868,917.72 and 343,182.88

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Solution

The fourth proportional to 629,668.96, 868,917.72 and 343,182.88 is: 473,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,668.96 : 868,917.72 = 343,182.88 : x
  2. Step 2: Convert to fraction form
    629,668.96/868,917.72 = 343,182.88/x
  3. Step 3: Cross multiply
    629,668.96x = 868,917.72 × 343,182.88
  4. Step 4: Simplify right side
    629,668.96x = 298,197,685,632.63
  5. Step 5: Solve for x
    x = 298,197,685,632.63/629,668.96
  6. Step 6: Final answer
    x = 473,578.51

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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.