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Finding the Fourth Proportional to 1,494.01, 2,241.38 and 520.12

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Solution

The fourth proportional to 1,494.01, 2,241.38 and 520.12 is: 780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.01 : 2,241.38 = 520.12 : x
  2. Step 2: Convert to fraction form
    1,494.01/2,241.38 = 520.12/x
  3. Step 3: Cross multiply
    1,494.01x = 2,241.38 × 520.12
  4. Step 4: Simplify right side
    1,494.01x = 1,165,782.26
  5. Step 5: Solve for x
    x = 1,165,782.26/1,494.01
  6. Step 6: Final answer
    x = 780.31

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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.