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Finding the Fourth Proportional to 507.18, 756.09 and 499.29

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Solution

The fourth proportional to 507.18, 756.09 and 499.29 is: 744.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.18 : 756.09 = 499.29 : x
  2. Step 2: Convert to fraction form
    507.18/756.09 = 499.29/x
  3. Step 3: Cross multiply
    507.18x = 756.09 × 499.29
  4. Step 4: Simplify right side
    507.18x = 377,508.18
  5. Step 5: Solve for x
    x = 377,508.18/507.18
  6. Step 6: Final answer
    x = 744.33

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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.