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Finding the Fourth Proportional to 677.29, 934.62 and 382.56

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Solution

The fourth proportional to 677.29, 934.62 and 382.56 is: 527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.29 : 934.62 = 382.56 : x
  2. Step 2: Convert to fraction form
    677.29/934.62 = 382.56/x
  3. Step 3: Cross multiply
    677.29x = 934.62 × 382.56
  4. Step 4: Simplify right side
    677.29x = 357,548.23
  5. Step 5: Solve for x
    x = 357,548.23/677.29
  6. Step 6: Final answer
    x = 527.91

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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.