Home / 1,086.26-1,498.65-620.24

Finding the Fourth Proportional to 1,086.26, 1,498.65 and 620.24

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Solution

The fourth proportional to 1,086.26, 1,498.65 and 620.24 is: 855.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.26 : 1,498.65 = 620.24 : x
  2. Step 2: Convert to fraction form
    1,086.26/1,498.65 = 620.24/x
  3. Step 3: Cross multiply
    1,086.26x = 1,498.65 × 620.24
  4. Step 4: Simplify right side
    1,086.26x = 929,522.68
  5. Step 5: Solve for x
    x = 929,522.68/1,086.26
  6. Step 6: Final answer
    x = 855.71

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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.