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Finding the Fourth Proportional to 614.26, 847.30 and 404.46

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Solution

The fourth proportional to 614.26, 847.30 and 404.46 is: 557.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.26 : 847.30 = 404.46 : x
  2. Step 2: Convert to fraction form
    614.26/847.30 = 404.46/x
  3. Step 3: Cross multiply
    614.26x = 847.30 × 404.46
  4. Step 4: Simplify right side
    614.26x = 342,698.96
  5. Step 5: Solve for x
    x = 342,698.96/614.26
  6. Step 6: Final answer
    x = 557.91

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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.