Home / 728.03-1,090.77-496.18

Finding the Fourth Proportional to 728.03, 1,090.77 and 496.18

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Solution

The fourth proportional to 728.03, 1,090.77 and 496.18 is: 743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    728.03 : 1,090.77 = 496.18 : x
  2. Step 2: Convert to fraction form
    728.03/1,090.77 = 496.18/x
  3. Step 3: Cross multiply
    728.03x = 1,090.77 × 496.18
  4. Step 4: Simplify right side
    728.03x = 541,211.63
  5. Step 5: Solve for x
    x = 541,211.63/728.03
  6. Step 6: Final answer
    x = 743.39

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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.