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Finding the Fourth Proportional to 1,003.12, 1,505.35 and 602.73

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Solution

The fourth proportional to 1,003.12, 1,505.35 and 602.73 is: 904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003.12 : 1,505.35 = 602.73 : x
  2. Step 2: Convert to fraction form
    1,003.12/1,505.35 = 602.73/x
  3. Step 3: Cross multiply
    1,003.12x = 1,505.35 × 602.73
  4. Step 4: Simplify right side
    1,003.12x = 907,324.59
  5. Step 5: Solve for x
    x = 907,324.59/1,003.12
  6. Step 6: Final answer
    x = 904.50

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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.