Home / 483,829.19-667,766.79-280,004.21

Finding the Fourth Proportional to 483,829.19, 667,766.79 and 280,004.21

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Solution

The fourth proportional to 483,829.19, 667,766.79 and 280,004.21 is: 386,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,829.19 : 667,766.79 = 280,004.21 : x
  2. Step 2: Convert to fraction form
    483,829.19/667,766.79 = 280,004.21/x
  3. Step 3: Cross multiply
    483,829.19x = 667,766.79 × 280,004.21
  4. Step 4: Simplify right side
    483,829.19x = 186,977,512,498.19
  5. Step 5: Solve for x
    x = 186,977,512,498.19/483,829.19
  6. Step 6: Final answer
    x = 386,453.56

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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.