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Finding the Fourth Proportional to 735.81, 1,015.46 and 441.28

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Solution

The fourth proportional to 735.81, 1,015.46 and 441.28 is: 608.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.81 : 1,015.46 = 441.28 : x
  2. Step 2: Convert to fraction form
    735.81/1,015.46 = 441.28/x
  3. Step 3: Cross multiply
    735.81x = 1,015.46 × 441.28
  4. Step 4: Simplify right side
    735.81x = 448,102.19
  5. Step 5: Solve for x
    x = 448,102.19/735.81
  6. Step 6: Final answer
    x = 608.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.