Home / 1,479.06-2,218.60-505.17

Finding the Fourth Proportional to 1,479.06, 2,218.60 and 505.17

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Solution

The fourth proportional to 1,479.06, 2,218.60 and 505.17 is: 757.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.06 : 2,218.60 = 505.17 : x
  2. Step 2: Convert to fraction form
    1,479.06/2,218.60 = 505.17/x
  3. Step 3: Cross multiply
    1,479.06x = 2,218.60 × 505.17
  4. Step 4: Simplify right side
    1,479.06x = 1,120,777.22
  5. Step 5: Solve for x
    x = 1,120,777.22/1,479.06
  6. Step 6: Final answer
    x = 757.76

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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.