Home / 1,028.00-1,418.30-608.49

Finding the Fourth Proportional to 1,028.00, 1,418.30 and 608.49

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Solution

The fourth proportional to 1,028.00, 1,418.30 and 608.49 is: 839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.00 : 1,418.30 = 608.49 : x
  2. Step 2: Convert to fraction form
    1,028.00/1,418.30 = 608.49/x
  3. Step 3: Cross multiply
    1,028.00x = 1,418.30 × 608.49
  4. Step 4: Simplify right side
    1,028.00x = 863,019.61
  5. Step 5: Solve for x
    x = 863,019.61/1,028.00
  6. Step 6: Final answer
    x = 839.51

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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.