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Finding the Fourth Proportional to 1,304.54, 1,800.32 and 806.79

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Solution

The fourth proportional to 1,304.54, 1,800.32 and 806.79 is: 1,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.54 : 1,800.32 = 806.79 : x
  2. Step 2: Convert to fraction form
    1,304.54/1,800.32 = 806.79/x
  3. Step 3: Cross multiply
    1,304.54x = 1,800.32 × 806.79
  4. Step 4: Simplify right side
    1,304.54x = 1,452,476.14
  5. Step 5: Solve for x
    x = 1,452,476.14/1,304.54
  6. Step 6: Final answer
    x = 1,113.41

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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.