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Finding the Fourth Proportional to 629,549.38, 868,776.82 and 343,068.78

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Solution

The fourth proportional to 629,549.38, 868,776.82 and 343,068.78 is: 473,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,549.38 : 868,776.82 = 343,068.78 : x
  2. Step 2: Convert to fraction form
    629,549.38/868,776.82 = 343,068.78/x
  3. Step 3: Cross multiply
    629,549.38x = 868,776.82 × 343,068.78
  4. Step 4: Simplify right side
    629,549.38x = 298,050,203,729.68
  5. Step 5: Solve for x
    x = 298,050,203,729.68/629,549.38
  6. Step 6: Final answer
    x = 473,434.19

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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.