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Finding the Fourth Proportional to 500.48, 750.89 and 451.96

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Solution

The fourth proportional to 500.48, 750.89 and 451.96 is: 678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.48 : 750.89 = 451.96 : x
  2. Step 2: Convert to fraction form
    500.48/750.89 = 451.96/x
  3. Step 3: Cross multiply
    500.48x = 750.89 × 451.96
  4. Step 4: Simplify right side
    500.48x = 339,371.50
  5. Step 5: Solve for x
    x = 339,371.50/500.48
  6. Step 6: Final answer
    x = 678.09

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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.