Home / 1,249.15-1,873.75-324.70

Finding the Fourth Proportional to 1,249.15, 1,873.75 and 324.70

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Solution

The fourth proportional to 1,249.15, 1,873.75 and 324.70 is: 487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.15 : 1,873.75 = 324.70 : x
  2. Step 2: Convert to fraction form
    1,249.15/1,873.75 = 324.70/x
  3. Step 3: Cross multiply
    1,249.15x = 1,873.75 × 324.70
  4. Step 4: Simplify right side
    1,249.15x = 608,406.63
  5. Step 5: Solve for x
    x = 608,406.63/1,249.15
  6. Step 6: Final answer
    x = 487.06

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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.