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Finding the Fourth Proportional to 539.45, 744.09 and 441.05

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Solution

The fourth proportional to 539.45, 744.09 and 441.05 is: 608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.45 : 744.09 = 441.05 : x
  2. Step 2: Convert to fraction form
    539.45/744.09 = 441.05/x
  3. Step 3: Cross multiply
    539.45x = 744.09 × 441.05
  4. Step 4: Simplify right side
    539.45x = 328,180.89
  5. Step 5: Solve for x
    x = 328,180.89/539.45
  6. Step 6: Final answer
    x = 608.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.