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Finding the Fourth Proportional to 956.80, 1,322.24 and 723.52

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Solution

The fourth proportional to 956.80, 1,322.24 and 723.52 is: 999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.80 : 1,322.24 = 723.52 : x
  2. Step 2: Convert to fraction form
    956.80/1,322.24 = 723.52/x
  3. Step 3: Cross multiply
    956.80x = 1,322.24 × 723.52
  4. Step 4: Simplify right side
    956.80x = 956,667.08
  5. Step 5: Solve for x
    x = 956,667.08/956.80
  6. Step 6: Final answer
    x = 999.86

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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.