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Finding the Fourth Proportional to 722.88, 996.41 and 565.24

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Solution

The fourth proportional to 722.88, 996.41 and 565.24 is: 779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.88 : 996.41 = 565.24 : x
  2. Step 2: Convert to fraction form
    722.88/996.41 = 565.24/x
  3. Step 3: Cross multiply
    722.88x = 996.41 × 565.24
  4. Step 4: Simplify right side
    722.88x = 563,210.79
  5. Step 5: Solve for x
    x = 563,210.79/722.88
  6. Step 6: Final answer
    x = 779.12

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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.