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Finding the Fourth Proportional to 804.53, 1,110.44 and 539.01

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Solution

The fourth proportional to 804.53, 1,110.44 and 539.01 is: 743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.53 : 1,110.44 = 539.01 : x
  2. Step 2: Convert to fraction form
    804.53/1,110.44 = 539.01/x
  3. Step 3: Cross multiply
    804.53x = 1,110.44 × 539.01
  4. Step 4: Simplify right side
    804.53x = 598,539.61
  5. Step 5: Solve for x
    x = 598,539.61/804.53
  6. Step 6: Final answer
    x = 743.96

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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.