Home / 1,116.36-1,540.58-619.01

Finding the Fourth Proportional to 1,116.36, 1,540.58 and 619.01

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Solution

The fourth proportional to 1,116.36, 1,540.58 and 619.01 is: 854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.36 : 1,540.58 = 619.01 : x
  2. Step 2: Convert to fraction form
    1,116.36/1,540.58 = 619.01/x
  3. Step 3: Cross multiply
    1,116.36x = 1,540.58 × 619.01
  4. Step 4: Simplify right side
    1,116.36x = 953,634.43
  5. Step 5: Solve for x
    x = 953,634.43/1,116.36
  6. Step 6: Final answer
    x = 854.24

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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.