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Finding the Fourth Proportional to 524.22, 722.56 and 418.97

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Solution

The fourth proportional to 524.22, 722.56 and 418.97 is: 577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.22 : 722.56 = 418.97 : x
  2. Step 2: Convert to fraction form
    524.22/722.56 = 418.97/x
  3. Step 3: Cross multiply
    524.22x = 722.56 × 418.97
  4. Step 4: Simplify right side
    524.22x = 302,727.35
  5. Step 5: Solve for x
    x = 302,727.35/524.22
  6. Step 6: Final answer
    x = 577.49

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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.