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Finding the Fourth Proportional to 506.96, 759.62 and 425.96

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Solution

The fourth proportional to 506.96, 759.62 and 425.96 is: 638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.96 : 759.62 = 425.96 : x
  2. Step 2: Convert to fraction form
    506.96/759.62 = 425.96/x
  3. Step 3: Cross multiply
    506.96x = 759.62 × 425.96
  4. Step 4: Simplify right side
    506.96x = 323,567.74
  5. Step 5: Solve for x
    x = 323,567.74/506.96
  6. Step 6: Final answer
    x = 638.25

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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.