Home / 1,231.26-1,845.28-499.98

Finding the Fourth Proportional to 1,231.26, 1,845.28 and 499.98

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Solution

The fourth proportional to 1,231.26, 1,845.28 and 499.98 is: 749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.26 : 1,845.28 = 499.98 : x
  2. Step 2: Convert to fraction form
    1,231.26/1,845.28 = 499.98/x
  3. Step 3: Cross multiply
    1,231.26x = 1,845.28 × 499.98
  4. Step 4: Simplify right side
    1,231.26x = 922,603.09
  5. Step 5: Solve for x
    x = 922,603.09/1,231.26
  6. Step 6: Final answer
    x = 749.32

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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.