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Finding the Fourth Proportional to 944.10, 1,303.30 and 629.88

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Solution

The fourth proportional to 944.10, 1,303.30 and 629.88 is: 869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.10 : 1,303.30 = 629.88 : x
  2. Step 2: Convert to fraction form
    944.10/1,303.30 = 629.88/x
  3. Step 3: Cross multiply
    944.10x = 1,303.30 × 629.88
  4. Step 4: Simplify right side
    944.10x = 820,922.60
  5. Step 5: Solve for x
    x = 820,922.60/944.10
  6. Step 6: Final answer
    x = 869.53

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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.