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Finding the Fourth Proportional to 452.04, 620.49 and 401.82

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Solution

The fourth proportional to 452.04, 620.49 and 401.82 is: 551.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.04 : 620.49 = 401.82 : x
  2. Step 2: Convert to fraction form
    452.04/620.49 = 401.82/x
  3. Step 3: Cross multiply
    452.04x = 620.49 × 401.82
  4. Step 4: Simplify right side
    452.04x = 249,325.29
  5. Step 5: Solve for x
    x = 249,325.29/452.04
  6. Step 6: Final answer
    x = 551.56

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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.