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Finding the Fourth Proportional to 524.82, 722.22 and 521.64

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Solution

The fourth proportional to 524.82, 722.22 and 521.64 is: 717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.82 : 722.22 = 521.64 : x
  2. Step 2: Convert to fraction form
    524.82/722.22 = 521.64/x
  3. Step 3: Cross multiply
    524.82x = 722.22 × 521.64
  4. Step 4: Simplify right side
    524.82x = 376,738.84
  5. Step 5: Solve for x
    x = 376,738.84/524.82
  6. Step 6: Final answer
    x = 717.84

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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.