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Finding the Fourth Proportional to 501.68, 748.69 and 447.01

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Solution

The fourth proportional to 501.68, 748.69 and 447.01 is: 667.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.68 : 748.69 = 447.01 : x
  2. Step 2: Convert to fraction form
    501.68/748.69 = 447.01/x
  3. Step 3: Cross multiply
    501.68x = 748.69 × 447.01
  4. Step 4: Simplify right side
    501.68x = 334,668.93
  5. Step 5: Solve for x
    x = 334,668.93/501.68
  6. Step 6: Final answer
    x = 667.09

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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.