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Finding the Fourth Proportional to 508.91, 758.03 and 482.90

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Solution

The fourth proportional to 508.91, 758.03 and 482.90 is: 719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.91 : 758.03 = 482.90 : x
  2. Step 2: Convert to fraction form
    508.91/758.03 = 482.90/x
  3. Step 3: Cross multiply
    508.91x = 758.03 × 482.90
  4. Step 4: Simplify right side
    508.91x = 366,046.48
  5. Step 5: Solve for x
    x = 366,046.48/508.91
  6. Step 6: Final answer
    x = 719.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.