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Finding the Fourth Proportional to 452.73, 621.90 and 411.42

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Solution

The fourth proportional to 452.73, 621.90 and 411.42 is: 565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.73 : 621.90 = 411.42 : x
  2. Step 2: Convert to fraction form
    452.73/621.90 = 411.42/x
  3. Step 3: Cross multiply
    452.73x = 621.90 × 411.42
  4. Step 4: Simplify right side
    452.73x = 255,862.10
  5. Step 5: Solve for x
    x = 255,862.10/452.73
  6. Step 6: Final answer
    x = 565.15

Related Problems

Find fourth proportional to 226.37, 310.95 and 205.71
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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.