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Finding the Fourth Proportional to 964.75, 1,446.38 and 444.38

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Solution

The fourth proportional to 964.75, 1,446.38 and 444.38 is: 666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.75 : 1,446.38 = 444.38 : x
  2. Step 2: Convert to fraction form
    964.75/1,446.38 = 444.38/x
  3. Step 3: Cross multiply
    964.75x = 1,446.38 × 444.38
  4. Step 4: Simplify right side
    964.75x = 642,740.12
  5. Step 5: Solve for x
    x = 642,740.12/964.75
  6. Step 6: Final answer
    x = 666.22

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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.