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Finding the Fourth Proportional to 626.04, 863.55 and 468.72

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Solution

The fourth proportional to 626.04, 863.55 and 468.72 is: 646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.04 : 863.55 = 468.72 : x
  2. Step 2: Convert to fraction form
    626.04/863.55 = 468.72/x
  3. Step 3: Cross multiply
    626.04x = 863.55 × 468.72
  4. Step 4: Simplify right side
    626.04x = 404,763.16
  5. Step 5: Solve for x
    x = 404,763.16/626.04
  6. Step 6: Final answer
    x = 646.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.