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Finding the Fourth Proportional to 955.04, 1,317.92 and 540.96

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Solution

The fourth proportional to 955.04, 1,317.92 and 540.96 is: 746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.04 : 1,317.92 = 540.96 : x
  2. Step 2: Convert to fraction form
    955.04/1,317.92 = 540.96/x
  3. Step 3: Cross multiply
    955.04x = 1,317.92 × 540.96
  4. Step 4: Simplify right side
    955.04x = 712,942.00
  5. Step 5: Solve for x
    x = 712,942.00/955.04
  6. Step 6: Final answer
    x = 746.50

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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.