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Finding the Fourth Proportional to 539.55, 804.49 and 534.76

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Solution

The fourth proportional to 539.55, 804.49 and 534.76 is: 797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.55 : 804.49 = 534.76 : x
  2. Step 2: Convert to fraction form
    539.55/804.49 = 534.76/x
  3. Step 3: Cross multiply
    539.55x = 804.49 × 534.76
  4. Step 4: Simplify right side
    539.55x = 430,205.72
  5. Step 5: Solve for x
    x = 430,205.72/539.55
  6. Step 6: Final answer
    x = 797.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.