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Finding the Fourth Proportional to 903.02, 1,352.48 and 629.33

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Solution

The fourth proportional to 903.02, 1,352.48 and 629.33 is: 942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.02 : 1,352.48 = 629.33 : x
  2. Step 2: Convert to fraction form
    903.02/1,352.48 = 629.33/x
  3. Step 3: Cross multiply
    903.02x = 1,352.48 × 629.33
  4. Step 4: Simplify right side
    903.02x = 851,146.33
  5. Step 5: Solve for x
    x = 851,146.33/903.02
  6. Step 6: Final answer
    x = 942.56

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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.