Home / 1,028.90-1,542.44-508.58

Finding the Fourth Proportional to 1,028.90, 1,542.44 and 508.58

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Solution

The fourth proportional to 1,028.90, 1,542.44 and 508.58 is: 762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.90 : 1,542.44 = 508.58 : x
  2. Step 2: Convert to fraction form
    1,028.90/1,542.44 = 508.58/x
  3. Step 3: Cross multiply
    1,028.90x = 1,542.44 × 508.58
  4. Step 4: Simplify right side
    1,028.90x = 784,453.48
  5. Step 5: Solve for x
    x = 784,453.48/1,028.90
  6. Step 6: Final answer
    x = 762.42

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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.