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Finding the Fourth Proportional to 1,030.03, 1,543.97 and 481.75

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Solution

The fourth proportional to 1,030.03, 1,543.97 and 481.75 is: 722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.03 : 1,543.97 = 481.75 : x
  2. Step 2: Convert to fraction form
    1,030.03/1,543.97 = 481.75/x
  3. Step 3: Cross multiply
    1,030.03x = 1,543.97 × 481.75
  4. Step 4: Simplify right side
    1,030.03x = 743,805.14
  5. Step 5: Solve for x
    x = 743,805.14/1,030.03
  6. Step 6: Final answer
    x = 722.12

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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.