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Finding the Fourth Proportional to 629,589.38, 868,807.98 and 343,103.31

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Solution

The fourth proportional to 629,589.38, 868,807.98 and 343,103.31 is: 473,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,589.38 : 868,807.98 = 343,103.31 : x
  2. Step 2: Convert to fraction form
    629,589.38/868,807.98 = 343,103.31/x
  3. Step 3: Cross multiply
    629,589.38x = 868,807.98 × 343,103.31
  4. Step 4: Simplify right side
    629,589.38x = 298,090,893,692.41
  5. Step 5: Solve for x
    x = 298,090,893,692.41/629,589.38
  6. Step 6: Final answer
    x = 473,468.75

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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.