Home / 811,109.05-1,216,650.19-242,491.48

Finding the Fourth Proportional to 811,109.05, 1,216,650.19 and 242,491.48

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Solution

The fourth proportional to 811,109.05, 1,216,650.19 and 242,491.48 is: 363,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,109.05 : 1,216,650.19 = 242,491.48 : x
  2. Step 2: Convert to fraction form
    811,109.05/1,216,650.19 = 242,491.48/x
  3. Step 3: Cross multiply
    811,109.05x = 1,216,650.19 × 242,491.48
  4. Step 4: Simplify right side
    811,109.05x = 295,027,305,215.38
  5. Step 5: Solve for x
    x = 295,027,305,215.38/811,109.05
  6. Step 6: Final answer
    x = 363,733.22

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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.