Home / 1,116.66-1,540.92-619.27

Finding the Fourth Proportional to 1,116.66, 1,540.92 and 619.27

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Solution

The fourth proportional to 1,116.66, 1,540.92 and 619.27 is: 854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.66 : 1,540.92 = 619.27 : x
  2. Step 2: Convert to fraction form
    1,116.66/1,540.92 = 619.27/x
  3. Step 3: Cross multiply
    1,116.66x = 1,540.92 × 619.27
  4. Step 4: Simplify right side
    1,116.66x = 954,248.33
  5. Step 5: Solve for x
    x = 954,248.33/1,116.66
  6. Step 6: Final answer
    x = 854.56

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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.