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Finding the Fourth Proportional to 677.56, 933.94 and 456.44

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Solution

The fourth proportional to 677.56, 933.94 and 456.44 is: 629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.56 : 933.94 = 456.44 : x
  2. Step 2: Convert to fraction form
    677.56/933.94 = 456.44/x
  3. Step 3: Cross multiply
    677.56x = 933.94 × 456.44
  4. Step 4: Simplify right side
    677.56x = 426,287.57
  5. Step 5: Solve for x
    x = 426,287.57/677.56
  6. Step 6: Final answer
    x = 629.15

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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.