Home / 776,255.28-1,162,215.36-419,991.36

Finding the Fourth Proportional to 776,255.28, 1,162,215.36 and 419,991.36

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Solution

The fourth proportional to 776,255.28, 1,162,215.36 and 419,991.36 is: 628,814.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,255.28 : 1,162,215.36 = 419,991.36 : x
  2. Step 2: Convert to fraction form
    776,255.28/1,162,215.36 = 419,991.36/x
  3. Step 3: Cross multiply
    776,255.28x = 1,162,215.36 × 419,991.36
  4. Step 4: Simplify right side
    776,255.28x = 488,120,409,659.29
  5. Step 5: Solve for x
    x = 488,120,409,659.29/776,255.28
  6. Step 6: Final answer
    x = 628,814.29

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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.