Home / 815,835.96-1,126,015.44-521,297.28

Finding the Fourth Proportional to 815,835.96, 1,126,015.44 and 521,297.28

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Solution

The fourth proportional to 815,835.96, 1,126,015.44 and 521,297.28 is: 719,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,835.96 : 1,126,015.44 = 521,297.28 : x
  2. Step 2: Convert to fraction form
    815,835.96/1,126,015.44 = 521,297.28/x
  3. Step 3: Cross multiply
    815,835.96x = 1,126,015.44 × 521,297.28
  4. Step 4: Simplify right side
    815,835.96x = 586,988,786,110.00
  5. Step 5: Solve for x
    x = 586,988,786,110.00/815,835.96
  6. Step 6: Final answer
    x = 719,493.64

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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.