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Finding the Fourth Proportional to 551.59, 825.46 and 452.90

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Solution

The fourth proportional to 551.59, 825.46 and 452.90 is: 677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.59 : 825.46 = 452.90 : x
  2. Step 2: Convert to fraction form
    551.59/825.46 = 452.90/x
  3. Step 3: Cross multiply
    551.59x = 825.46 × 452.90
  4. Step 4: Simplify right side
    551.59x = 373,851.77
  5. Step 5: Solve for x
    x = 373,851.77/551.59
  6. Step 6: Final answer
    x = 677.77

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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.