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Finding the Fourth Proportional to 629,590.75, 868,809.88 and 343,104.69

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Solution

The fourth proportional to 629,590.75, 868,809.88 and 343,104.69 is: 473,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,590.75 : 868,809.88 = 343,104.69 : x
  2. Step 2: Convert to fraction form
    629,590.75/868,809.88 = 343,104.69/x
  3. Step 3: Cross multiply
    629,590.75x = 868,809.88 × 343,104.69
  4. Step 4: Simplify right side
    629,590.75x = 298,092,744,546.34
  5. Step 5: Solve for x
    x = 298,092,744,546.34/629,590.75
  6. Step 6: Final answer
    x = 473,470.65

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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.