Home / 1,324.73-1,986.55-544.57

Finding the Fourth Proportional to 1,324.73, 1,986.55 and 544.57

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Solution

The fourth proportional to 1,324.73, 1,986.55 and 544.57 is: 816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.73 : 1,986.55 = 544.57 : x
  2. Step 2: Convert to fraction form
    1,324.73/1,986.55 = 544.57/x
  3. Step 3: Cross multiply
    1,324.73x = 1,986.55 × 544.57
  4. Step 4: Simplify right side
    1,324.73x = 1,081,809.21
  5. Step 5: Solve for x
    x = 1,081,809.21/1,324.73
  6. Step 6: Final answer
    x = 816.62

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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.