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Finding the Fourth Proportional to 579,813, 800,229.42 and 353,589.72

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Solution

The fourth proportional to 579,813, 800,229.42 and 353,589.72 is: 488,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,813 : 800,229.42 = 353,589.72 : x
  2. Step 2: Convert to fraction form
    579,813/800,229.42 = 353,589.72/x
  3. Step 3: Cross multiply
    579,813x = 800,229.42 × 353,589.72
  4. Step 4: Simplify right side
    579,813x = 282,952,896,553.56
  5. Step 5: Solve for x
    x = 282,952,896,553.56/579,813
  6. Step 6: Final answer
    x = 488,007.16

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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.