Home / 628.94-943.41-382.14

Finding the Fourth Proportional to 628.94, 943.41 and 382.14

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Solution

The fourth proportional to 628.94, 943.41 and 382.14 is: 573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.94 : 943.41 = 382.14 : x
  2. Step 2: Convert to fraction form
    628.94/943.41 = 382.14/x
  3. Step 3: Cross multiply
    628.94x = 943.41 × 382.14
  4. Step 4: Simplify right side
    628.94x = 360,514.70
  5. Step 5: Solve for x
    x = 360,514.70/628.94
  6. Step 6: Final answer
    x = 573.21

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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.