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Finding the Fourth Proportional to 452.95, 621.55 and 411.37

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Solution

The fourth proportional to 452.95, 621.55 and 411.37 is: 564.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.95 : 621.55 = 411.37 : x
  2. Step 2: Convert to fraction form
    452.95/621.55 = 411.37/x
  3. Step 3: Cross multiply
    452.95x = 621.55 × 411.37
  4. Step 4: Simplify right side
    452.95x = 255,685.98
  5. Step 5: Solve for x
    x = 255,685.98/452.95
  6. Step 6: Final answer
    x = 564.49

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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.