Home / 627.03-939.17-382.81

Finding the Fourth Proportional to 627.03, 939.17 and 382.81

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Solution

The fourth proportional to 627.03, 939.17 and 382.81 is: 573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.03 : 939.17 = 382.81 : x
  2. Step 2: Convert to fraction form
    627.03/939.17 = 382.81/x
  3. Step 3: Cross multiply
    627.03x = 939.17 × 382.81
  4. Step 4: Simplify right side
    627.03x = 359,523.67
  5. Step 5: Solve for x
    x = 359,523.67/627.03
  6. Step 6: Final answer
    x = 573.38

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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.