Home / 1,049.24-1,573.68-318.98

Finding the Fourth Proportional to 1,049.24, 1,573.68 and 318.98

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Solution

The fourth proportional to 1,049.24, 1,573.68 and 318.98 is: 478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.24 : 1,573.68 = 318.98 : x
  2. Step 2: Convert to fraction form
    1,049.24/1,573.68 = 318.98/x
  3. Step 3: Cross multiply
    1,049.24x = 1,573.68 × 318.98
  4. Step 4: Simplify right side
    1,049.24x = 501,972.45
  5. Step 5: Solve for x
    x = 501,972.45/1,049.24
  6. Step 6: Final answer
    x = 478.42

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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.