Home / 819,558.32-1,228,636.27-314,481.74

Finding the Fourth Proportional to 819,558.32, 1,228,636.27 and 314,481.74

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Solution

The fourth proportional to 819,558.32, 1,228,636.27 and 314,481.74 is: 471,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,558.32 : 1,228,636.27 = 314,481.74 : x
  2. Step 2: Convert to fraction form
    819,558.32/1,228,636.27 = 314,481.74/x
  3. Step 3: Cross multiply
    819,558.32x = 1,228,636.27 × 314,481.74
  4. Step 4: Simplify right side
    819,558.32x = 386,383,672,016.71
  5. Step 5: Solve for x
    x = 386,383,672,016.71/819,558.32
  6. Step 6: Final answer
    x = 471,453.54

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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.