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Finding the Fourth Proportional to 964.27, 1,445.14 and 444.18

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Solution

The fourth proportional to 964.27, 1,445.14 and 444.18 is: 665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.27 : 1,445.14 = 444.18 : x
  2. Step 2: Convert to fraction form
    964.27/1,445.14 = 444.18/x
  3. Step 3: Cross multiply
    964.27x = 1,445.14 × 444.18
  4. Step 4: Simplify right side
    964.27x = 641,908.26
  5. Step 5: Solve for x
    x = 641,908.26/964.27
  6. Step 6: Final answer
    x = 665.69

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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.