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Finding the Fourth Proportional to 452.10, 676.55 and 413.70

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Solution

The fourth proportional to 452.10, 676.55 and 413.70 is: 619.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.10 : 676.55 = 413.70 : x
  2. Step 2: Convert to fraction form
    452.10/676.55 = 413.70/x
  3. Step 3: Cross multiply
    452.10x = 676.55 × 413.70
  4. Step 4: Simplify right side
    452.10x = 279,888.74
  5. Step 5: Solve for x
    x = 279,888.74/452.10
  6. Step 6: Final answer
    x = 619.09

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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.