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Finding the Fourth Proportional to 629,572.67, 868,784.97 and 343,086.59

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Solution

The fourth proportional to 629,572.67, 868,784.97 and 343,086.59 is: 473,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,572.67 : 868,784.97 = 343,086.59 : x
  2. Step 2: Convert to fraction form
    629,572.67/868,784.97 = 343,086.59/x
  3. Step 3: Cross multiply
    629,572.67x = 868,784.97 × 343,086.59
  4. Step 4: Simplify right side
    629,572.67x = 298,068,472,800.55
  5. Step 5: Solve for x
    x = 298,068,472,800.55/629,572.67
  6. Step 6: Final answer
    x = 473,445.70

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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.