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Finding the Fourth Proportional to 963.01, 1,444.74 and 415.25

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Solution

The fourth proportional to 963.01, 1,444.74 and 415.25 is: 622.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.01 : 1,444.74 = 415.25 : x
  2. Step 2: Convert to fraction form
    963.01/1,444.74 = 415.25/x
  3. Step 3: Cross multiply
    963.01x = 1,444.74 × 415.25
  4. Step 4: Simplify right side
    963.01x = 599,921.06
  5. Step 5: Solve for x
    x = 599,921.06/963.01
  6. Step 6: Final answer
    x = 622.97

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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.