Home / 1,028.30-1,541.37-450.50

Finding the Fourth Proportional to 1,028.30, 1,541.37 and 450.50

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Solution

The fourth proportional to 1,028.30, 1,541.37 and 450.50 is: 675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.30 : 1,541.37 = 450.50 : x
  2. Step 2: Convert to fraction form
    1,028.30/1,541.37 = 450.50/x
  3. Step 3: Cross multiply
    1,028.30x = 1,541.37 × 450.50
  4. Step 4: Simplify right side
    1,028.30x = 694,387.19
  5. Step 5: Solve for x
    x = 694,387.19/1,028.30
  6. Step 6: Final answer
    x = 675.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.