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Finding the Fourth Proportional to 682.62, 1,024.13 and 452.17

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Solution

The fourth proportional to 682.62, 1,024.13 and 452.17 is: 678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.62 : 1,024.13 = 452.17 : x
  2. Step 2: Convert to fraction form
    682.62/1,024.13 = 452.17/x
  3. Step 3: Cross multiply
    682.62x = 1,024.13 × 452.17
  4. Step 4: Simplify right side
    682.62x = 463,080.86
  5. Step 5: Solve for x
    x = 463,080.86/682.62
  6. Step 6: Final answer
    x = 678.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.