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Finding the Fourth Proportional to 952.91, 1,315.09 and 559.96

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Solution

The fourth proportional to 952.91, 1,315.09 and 559.96 is: 772.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.91 : 1,315.09 = 559.96 : x
  2. Step 2: Convert to fraction form
    952.91/1,315.09 = 559.96/x
  3. Step 3: Cross multiply
    952.91x = 1,315.09 × 559.96
  4. Step 4: Simplify right side
    952.91x = 736,399.46
  5. Step 5: Solve for x
    x = 736,399.46/952.91
  6. Step 6: Final answer
    x = 772.79

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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.