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Finding the Fourth Proportional to 452.36, 620.53 and 442.76

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Solution

The fourth proportional to 452.36, 620.53 and 442.76 is: 607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.36 : 620.53 = 442.76 : x
  2. Step 2: Convert to fraction form
    452.36/620.53 = 442.76/x
  3. Step 3: Cross multiply
    452.36x = 620.53 × 442.76
  4. Step 4: Simplify right side
    452.36x = 274,745.86
  5. Step 5: Solve for x
    x = 274,745.86/452.36
  6. Step 6: Final answer
    x = 607.36

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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.