Home / 1,478.40-2,217.12-600.66

Finding the Fourth Proportional to 1,478.40, 2,217.12 and 600.66

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Solution

The fourth proportional to 1,478.40, 2,217.12 and 600.66 is: 900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.40 : 2,217.12 = 600.66 : x
  2. Step 2: Convert to fraction form
    1,478.40/2,217.12 = 600.66/x
  3. Step 3: Cross multiply
    1,478.40x = 2,217.12 × 600.66
  4. Step 4: Simplify right side
    1,478.40x = 1,331,735.30
  5. Step 5: Solve for x
    x = 1,331,735.30/1,478.40
  6. Step 6: Final answer
    x = 900.79

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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.