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Finding the Fourth Proportional to 499.74, 750.75 and 472.06

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Solution

The fourth proportional to 499.74, 750.75 and 472.06 is: 709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.74 : 750.75 = 472.06 : x
  2. Step 2: Convert to fraction form
    499.74/750.75 = 472.06/x
  3. Step 3: Cross multiply
    499.74x = 750.75 × 472.06
  4. Step 4: Simplify right side
    499.74x = 354,399.05
  5. Step 5: Solve for x
    x = 354,399.05/499.74
  6. Step 6: Final answer
    x = 709.17

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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.