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Finding the Fourth Proportional to 508.01, 762.10 and 499.69

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Solution

The fourth proportional to 508.01, 762.10 and 499.69 is: 749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.01 : 762.10 = 499.69 : x
  2. Step 2: Convert to fraction form
    508.01/762.10 = 499.69/x
  3. Step 3: Cross multiply
    508.01x = 762.10 × 499.69
  4. Step 4: Simplify right side
    508.01x = 380,813.75
  5. Step 5: Solve for x
    x = 380,813.75/508.01
  6. Step 6: Final answer
    x = 749.62

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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.