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Finding the Fourth Proportional to 629,563.17, 868,771.87 and 343,077.10

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Solution

The fourth proportional to 629,563.17, 868,771.87 and 343,077.10 is: 473,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,563.17 : 868,771.87 = 343,077.10 : x
  2. Step 2: Convert to fraction form
    629,563.17/868,771.87 = 343,077.10/x
  3. Step 3: Cross multiply
    629,563.17x = 868,771.87 × 343,077.10
  4. Step 4: Simplify right side
    629,563.17x = 298,055,733,721.18
  5. Step 5: Solve for x
    x = 298,055,733,721.18/629,563.17
  6. Step 6: Final answer
    x = 473,432.61

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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.