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Finding the Fourth Proportional to 952.77, 1,314.64 and 559.65

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Solution

The fourth proportional to 952.77, 1,314.64 and 559.65 is: 772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.77 : 1,314.64 = 559.65 : x
  2. Step 2: Convert to fraction form
    952.77/1,314.64 = 559.65/x
  3. Step 3: Cross multiply
    952.77x = 1,314.64 × 559.65
  4. Step 4: Simplify right side
    952.77x = 735,738.28
  5. Step 5: Solve for x
    x = 735,738.28/952.77
  6. Step 6: Final answer
    x = 772.21

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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.