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Finding the Fourth Proportional to 629,635.64, 868,871.46 and 343,149.32

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Solution

The fourth proportional to 629,635.64, 868,871.46 and 343,149.32 is: 473,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,635.64 : 868,871.46 = 343,149.32 : x
  2. Step 2: Convert to fraction form
    629,635.64/868,871.46 = 343,149.32/x
  3. Step 3: Cross multiply
    629,635.64x = 868,871.46 × 343,149.32
  4. Step 4: Simplify right side
    629,635.64x = 298,152,650,666.41
  5. Step 5: Solve for x
    x = 298,152,650,666.41/629,635.64
  6. Step 6: Final answer
    x = 473,532.04

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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.