Home / 1,324.32-1,986.48-555.36

Finding the Fourth Proportional to 1,324.32, 1,986.48 and 555.36

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Solution

The fourth proportional to 1,324.32, 1,986.48 and 555.36 is: 833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.32 : 1,986.48 = 555.36 : x
  2. Step 2: Convert to fraction form
    1,324.32/1,986.48 = 555.36/x
  3. Step 3: Cross multiply
    1,324.32x = 1,986.48 × 555.36
  4. Step 4: Simplify right side
    1,324.32x = 1,103,211.53
  5. Step 5: Solve for x
    x = 1,103,211.53/1,324.32
  6. Step 6: Final answer
    x = 833.04

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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.