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Finding the Fourth Proportional to 954.44, 1,431.84 and 630.08

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Solution

The fourth proportional to 954.44, 1,431.84 and 630.08 is: 945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.44 : 1,431.84 = 630.08 : x
  2. Step 2: Convert to fraction form
    954.44/1,431.84 = 630.08/x
  3. Step 3: Cross multiply
    954.44x = 1,431.84 × 630.08
  4. Step 4: Simplify right side
    954.44x = 902,173.75
  5. Step 5: Solve for x
    x = 902,173.75/954.44
  6. Step 6: Final answer
    x = 945.24

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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.