Home / 814,183.60-1,221,076.28-636,249.28

Finding the Fourth Proportional to 814,183.60, 1,221,076.28 and 636,249.28

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Solution

The fourth proportional to 814,183.60, 1,221,076.28 and 636,249.28 is: 954,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,183.60 : 1,221,076.28 = 636,249.28 : x
  2. Step 2: Convert to fraction form
    814,183.60/1,221,076.28 = 636,249.28/x
  3. Step 3: Cross multiply
    814,183.60x = 1,221,076.28 × 636,249.28
  4. Step 4: Simplify right side
    814,183.60x = 776,908,903,975.08
  5. Step 5: Solve for x
    x = 776,908,903,975.08/814,183.60
  6. Step 6: Final answer
    x = 954,218.32

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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.