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Finding the Fourth Proportional to 779, 1,162.46 and 675.32

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Solution

The fourth proportional to 779, 1,162.46 and 675.32 is: 1,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    779 : 1,162.46 = 675.32 : x
  2. Step 2: Convert to fraction form
    779/1,162.46 = 675.32/x
  3. Step 3: Cross multiply
    779x = 1,162.46 × 675.32
  4. Step 4: Simplify right side
    779x = 785,032.49
  5. Step 5: Solve for x
    x = 785,032.49/779
  6. Step 6: Final answer
    x = 1,007.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.