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Finding the Fourth Proportional to 1,004.11, 1,506.17 and 490.75

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Solution

The fourth proportional to 1,004.11, 1,506.17 and 490.75 is: 736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.11 : 1,506.17 = 490.75 : x
  2. Step 2: Convert to fraction form
    1,004.11/1,506.17 = 490.75/x
  3. Step 3: Cross multiply
    1,004.11x = 1,506.17 × 490.75
  4. Step 4: Simplify right side
    1,004.11x = 739,152.93
  5. Step 5: Solve for x
    x = 739,152.93/1,004.11
  6. Step 6: Final answer
    x = 736.13

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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.