Home / 751,249.90-1,126,876.88-218,783.98

Finding the Fourth Proportional to 751,249.90, 1,126,876.88 and 218,783.98

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Solution

The fourth proportional to 751,249.90, 1,126,876.88 and 218,783.98 is: 328,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,249.90 : 1,126,876.88 = 218,783.98 : x
  2. Step 2: Convert to fraction form
    751,249.90/1,126,876.88 = 218,783.98/x
  3. Step 3: Cross multiply
    751,249.90x = 1,126,876.88 × 218,783.98
  4. Step 4: Simplify right side
    751,249.90x = 246,542,608,776.38
  5. Step 5: Solve for x
    x = 246,542,608,776.38/751,249.90
  6. Step 6: Final answer
    x = 328,176.56

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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.