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Finding the Fourth Proportional to 619.22, 853.34 and 444.26

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Solution

The fourth proportional to 619.22, 853.34 and 444.26 is: 612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.22 : 853.34 = 444.26 : x
  2. Step 2: Convert to fraction form
    619.22/853.34 = 444.26/x
  3. Step 3: Cross multiply
    619.22x = 853.34 × 444.26
  4. Step 4: Simplify right side
    619.22x = 379,104.83
  5. Step 5: Solve for x
    x = 379,104.83/619.22
  6. Step 6: Final answer
    x = 612.23

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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.