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Finding the Fourth Proportional to 735.39, 1,100.93 and 579.87

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Solution

The fourth proportional to 735.39, 1,100.93 and 579.87 is: 868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.39 : 1,100.93 = 579.87 : x
  2. Step 2: Convert to fraction form
    735.39/1,100.93 = 579.87/x
  3. Step 3: Cross multiply
    735.39x = 1,100.93 × 579.87
  4. Step 4: Simplify right side
    735.39x = 638,393.38
  5. Step 5: Solve for x
    x = 638,393.38/735.39
  6. Step 6: Final answer
    x = 868.10

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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.