Home / 751,143.38-1,126,899.66-218,669

Finding the Fourth Proportional to 751,143.38, 1,126,899.66 and 218,669

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Solution

The fourth proportional to 751,143.38, 1,126,899.66 and 218,669 is: 328,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,143.38 : 1,126,899.66 = 218,669 : x
  2. Step 2: Convert to fraction form
    751,143.38/1,126,899.66 = 218,669/x
  3. Step 3: Cross multiply
    751,143.38x = 1,126,899.66 × 218,669
  4. Step 4: Simplify right side
    751,143.38x = 246,418,021,752.54
  5. Step 5: Solve for x
    x = 246,418,021,752.54/751,143.38
  6. Step 6: Final answer
    x = 328,057.24

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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.