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Finding the Fourth Proportional to 1,002.06, 1,382.84 and 582.65

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Solution

The fourth proportional to 1,002.06, 1,382.84 and 582.65 is: 804.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002.06 : 1,382.84 = 582.65 : x
  2. Step 2: Convert to fraction form
    1,002.06/1,382.84 = 582.65/x
  3. Step 3: Cross multiply
    1,002.06x = 1,382.84 × 582.65
  4. Step 4: Simplify right side
    1,002.06x = 805,720.33
  5. Step 5: Solve for x
    x = 805,720.33/1,002.06
  6. Step 6: Final answer
    x = 804.06

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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.