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Finding the Fourth Proportional to 629,708.34, 868,998.06 and 343,222.68

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Solution

The fourth proportional to 629,708.34, 868,998.06 and 343,222.68 is: 473,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,708.34 : 868,998.06 = 343,222.68 : x
  2. Step 2: Convert to fraction form
    629,708.34/868,998.06 = 343,222.68/x
  3. Step 3: Cross multiply
    629,708.34x = 868,998.06 × 343,222.68
  4. Step 4: Simplify right side
    629,708.34x = 298,259,843,068.00
  5. Step 5: Solve for x
    x = 298,259,843,068.00/629,708.34
  6. Step 6: Final answer
    x = 473,647.60

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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.