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Finding the Fourth Proportional to 1,004.47, 1,506.67 and 274.03

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Solution

The fourth proportional to 1,004.47, 1,506.67 and 274.03 is: 411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.47 : 1,506.67 = 274.03 : x
  2. Step 2: Convert to fraction form
    1,004.47/1,506.67 = 274.03/x
  3. Step 3: Cross multiply
    1,004.47x = 1,506.67 × 274.03
  4. Step 4: Simplify right side
    1,004.47x = 412,868.33
  5. Step 5: Solve for x
    x = 412,868.33/1,004.47
  6. Step 6: Final answer
    x = 411.03

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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.