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Finding the Fourth Proportional to 677.22, 934.22 and 456.41

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Solution

The fourth proportional to 677.22, 934.22 and 456.41 is: 629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.22 : 934.22 = 456.41 : x
  2. Step 2: Convert to fraction form
    677.22/934.22 = 456.41/x
  3. Step 3: Cross multiply
    677.22x = 934.22 × 456.41
  4. Step 4: Simplify right side
    677.22x = 426,380.40
  5. Step 5: Solve for x
    x = 426,380.40/677.22
  6. Step 6: Final answer
    x = 629.60

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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.