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Finding the Fourth Proportional to 539.76, 810.60 and 532.08

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Solution

The fourth proportional to 539.76, 810.60 and 532.08 is: 799.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.76 : 810.60 = 532.08 : x
  2. Step 2: Convert to fraction form
    539.76/810.60 = 532.08/x
  3. Step 3: Cross multiply
    539.76x = 810.60 × 532.08
  4. Step 4: Simplify right side
    539.76x = 431,304.05
  5. Step 5: Solve for x
    x = 431,304.05/539.76
  6. Step 6: Final answer
    x = 799.07

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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.