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Finding the Fourth Proportional to 677.30, 934.74 and 382.59

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Solution

The fourth proportional to 677.30, 934.74 and 382.59 is: 528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.30 : 934.74 = 382.59 : x
  2. Step 2: Convert to fraction form
    677.30/934.74 = 382.59/x
  3. Step 3: Cross multiply
    677.30x = 934.74 × 382.59
  4. Step 4: Simplify right side
    677.30x = 357,622.18
  5. Step 5: Solve for x
    x = 357,622.18/677.30
  6. Step 6: Final answer
    x = 528.02

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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.