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Finding the Fourth Proportional to 956.01, 1,319.31 and 563.26

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Solution

The fourth proportional to 956.01, 1,319.31 and 563.26 is: 777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.01 : 1,319.31 = 563.26 : x
  2. Step 2: Convert to fraction form
    956.01/1,319.31 = 563.26/x
  3. Step 3: Cross multiply
    956.01x = 1,319.31 × 563.26
  4. Step 4: Simplify right side
    956.01x = 743,114.55
  5. Step 5: Solve for x
    x = 743,114.55/956.01
  6. Step 6: Final answer
    x = 777.31

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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.