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Finding the Fourth Proportional to 722.32, 997.67 and 625.27

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Solution

The fourth proportional to 722.32, 997.67 and 625.27 is: 863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.32 : 997.67 = 625.27 : x
  2. Step 2: Convert to fraction form
    722.32/997.67 = 625.27/x
  3. Step 3: Cross multiply
    722.32x = 997.67 × 625.27
  4. Step 4: Simplify right side
    722.32x = 623,810.54
  5. Step 5: Solve for x
    x = 623,810.54/722.32
  6. Step 6: Final answer
    x = 863.62

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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.