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Finding the Fourth Proportional to 735.90, 1,014.12 and 539.48

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Solution

The fourth proportional to 735.90, 1,014.12 and 539.48 is: 743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.90 : 1,014.12 = 539.48 : x
  2. Step 2: Convert to fraction form
    735.90/1,014.12 = 539.48/x
  3. Step 3: Cross multiply
    735.90x = 1,014.12 × 539.48
  4. Step 4: Simplify right side
    735.90x = 547,097.46
  5. Step 5: Solve for x
    x = 547,097.46/735.90
  6. Step 6: Final answer
    x = 743.44

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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.