Home / 1,028.26-1,418.45-654.58

Finding the Fourth Proportional to 1,028.26, 1,418.45 and 654.58

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Solution

The fourth proportional to 1,028.26, 1,418.45 and 654.58 is: 902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.26 : 1,418.45 = 654.58 : x
  2. Step 2: Convert to fraction form
    1,028.26/1,418.45 = 654.58/x
  3. Step 3: Cross multiply
    1,028.26x = 1,418.45 × 654.58
  4. Step 4: Simplify right side
    1,028.26x = 928,487.50
  5. Step 5: Solve for x
    x = 928,487.50/1,028.26
  6. Step 6: Final answer
    x = 902.97

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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.