Home / 815,844.15-1,126,025.96-521,305.47

Finding the Fourth Proportional to 815,844.15, 1,126,025.96 and 521,305.47

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Solution

The fourth proportional to 815,844.15, 1,126,025.96 and 521,305.47 is: 719,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,844.15 : 1,126,025.96 = 521,305.47 : x
  2. Step 2: Convert to fraction form
    815,844.15/1,126,025.96 = 521,305.47/x
  3. Step 3: Cross multiply
    815,844.15x = 1,126,025.96 × 521,305.47
  4. Step 4: Simplify right side
    815,844.15x = 587,003,489,703.47
  5. Step 5: Solve for x
    x = 587,003,489,703.47/815,844.15
  6. Step 6: Final answer
    x = 719,504.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.