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Finding the Fourth Proportional to 562.01, 843.62 and 426.54

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Solution

The fourth proportional to 562.01, 843.62 and 426.54 is: 640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.01 : 843.62 = 426.54 : x
  2. Step 2: Convert to fraction form
    562.01/843.62 = 426.54/x
  3. Step 3: Cross multiply
    562.01x = 843.62 × 426.54
  4. Step 4: Simplify right side
    562.01x = 359,837.67
  5. Step 5: Solve for x
    x = 359,837.67/562.01
  6. Step 6: Final answer
    x = 640.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.