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Finding the Fourth Proportional to 562.96, 772.58 and 553.36

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Solution

The fourth proportional to 562.96, 772.58 and 553.36 is: 759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.96 : 772.58 = 553.36 : x
  2. Step 2: Convert to fraction form
    562.96/772.58 = 553.36/x
  3. Step 3: Cross multiply
    562.96x = 772.58 × 553.36
  4. Step 4: Simplify right side
    562.96x = 427,514.87
  5. Step 5: Solve for x
    x = 427,514.87/562.96
  6. Step 6: Final answer
    x = 759.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.