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Finding the Fourth Proportional to 956.44, 1,319.38 and 563.32

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Solution

The fourth proportional to 956.44, 1,319.38 and 563.32 is: 777.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.44 : 1,319.38 = 563.32 : x
  2. Step 2: Convert to fraction form
    956.44/1,319.38 = 563.32/x
  3. Step 3: Cross multiply
    956.44x = 1,319.38 × 563.32
  4. Step 4: Simplify right side
    956.44x = 743,233.14
  5. Step 5: Solve for x
    x = 743,233.14/956.44
  6. Step 6: Final answer
    x = 777.08

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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.