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Finding the Fourth Proportional to 1,168.04, 1,751.50 and 620.48

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Solution

The fourth proportional to 1,168.04, 1,751.50 and 620.48 is: 930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.04 : 1,751.50 = 620.48 : x
  2. Step 2: Convert to fraction form
    1,168.04/1,751.50 = 620.48/x
  3. Step 3: Cross multiply
    1,168.04x = 1,751.50 × 620.48
  4. Step 4: Simplify right side
    1,168.04x = 1,086,770.72
  5. Step 5: Solve for x
    x = 1,086,770.72/1,168.04
  6. Step 6: Final answer
    x = 930.42

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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.