Home / 1,204.10-1,806.15-326.60

Finding the Fourth Proportional to 1,204.10, 1,806.15 and 326.60

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Solution

The fourth proportional to 1,204.10, 1,806.15 and 326.60 is: 489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.10 : 1,806.15 = 326.60 : x
  2. Step 2: Convert to fraction form
    1,204.10/1,806.15 = 326.60/x
  3. Step 3: Cross multiply
    1,204.10x = 1,806.15 × 326.60
  4. Step 4: Simplify right side
    1,204.10x = 589,895.88
  5. Step 5: Solve for x
    x = 589,895.88/1,204.10
  6. Step 6: Final answer
    x = 489.91

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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.