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Finding the Fourth Proportional to 627.39, 943.11 and 582.30

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Solution

The fourth proportional to 627.39, 943.11 and 582.30 is: 875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.39 : 943.11 = 582.30 : x
  2. Step 2: Convert to fraction form
    627.39/943.11 = 582.30/x
  3. Step 3: Cross multiply
    627.39x = 943.11 × 582.30
  4. Step 4: Simplify right side
    627.39x = 549,172.95
  5. Step 5: Solve for x
    x = 549,172.95/627.39
  6. Step 6: Final answer
    x = 875.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.