Home / 1,323.78-1,986.27-544.35

Finding the Fourth Proportional to 1,323.78, 1,986.27 and 544.35

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Solution

The fourth proportional to 1,323.78, 1,986.27 and 544.35 is: 816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.78 : 1,986.27 = 544.35 : x
  2. Step 2: Convert to fraction form
    1,323.78/1,986.27 = 544.35/x
  3. Step 3: Cross multiply
    1,323.78x = 1,986.27 × 544.35
  4. Step 4: Simplify right side
    1,323.78x = 1,081,226.07
  5. Step 5: Solve for x
    x = 1,081,226.07/1,323.78
  6. Step 6: Final answer
    x = 816.77

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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.