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Finding the Fourth Proportional to 629,542.88, 868,743.88 and 343,056.82

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Solution

The fourth proportional to 629,542.88, 868,743.88 and 343,056.82 is: 473,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,542.88 : 868,743.88 = 343,056.82 : x
  2. Step 2: Convert to fraction form
    629,542.88/868,743.88 = 343,056.82/x
  3. Step 3: Cross multiply
    629,542.88x = 868,743.88 × 343,056.82
  4. Step 4: Simplify right side
    629,542.88x = 298,028,512,867.26
  5. Step 5: Solve for x
    x = 298,028,512,867.26/629,542.88
  6. Step 6: Final answer
    x = 473,404.63

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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.