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Finding the Fourth Proportional to 629,497.80, 868,707 and 343,017.84

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Solution

The fourth proportional to 629,497.80, 868,707 and 343,017.84 is: 473,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,497.80 : 868,707 = 343,017.84 : x
  2. Step 2: Convert to fraction form
    629,497.80/868,707 = 343,017.84/x
  3. Step 3: Cross multiply
    629,497.80x = 868,707 × 343,017.84
  4. Step 4: Simplify right side
    629,497.80x = 297,981,998,732.88
  5. Step 5: Solve for x
    x = 297,981,998,732.88/629,497.80
  6. Step 6: Final answer
    x = 473,364.64

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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.