Home / 1,200.28-1,799.36-469.35

Finding the Fourth Proportional to 1,200.28, 1,799.36 and 469.35

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Solution

The fourth proportional to 1,200.28, 1,799.36 and 469.35 is: 703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.28 : 1,799.36 = 469.35 : x
  2. Step 2: Convert to fraction form
    1,200.28/1,799.36 = 469.35/x
  3. Step 3: Cross multiply
    1,200.28x = 1,799.36 × 469.35
  4. Step 4: Simplify right side
    1,200.28x = 844,524.04
  5. Step 5: Solve for x
    x = 844,524.04/1,200.28
  6. Step 6: Final answer
    x = 703.61

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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.