Home / 483,828.19-667,765.41-280,003.21

Finding the Fourth Proportional to 483,828.19, 667,765.41 and 280,003.21

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Solution

The fourth proportional to 483,828.19, 667,765.41 and 280,003.21 is: 386,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,828.19 : 667,765.41 = 280,003.21 : x
  2. Step 2: Convert to fraction form
    483,828.19/667,765.41 = 280,003.21/x
  3. Step 3: Cross multiply
    483,828.19x = 667,765.41 × 280,003.21
  4. Step 4: Simplify right side
    483,828.19x = 186,976,456,657.55
  5. Step 5: Solve for x
    x = 186,976,456,657.55/483,828.19
  6. Step 6: Final answer
    x = 386,452.18

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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.