Home / 483,619.06-667,388.32-279,664.30

Finding the Fourth Proportional to 483,619.06, 667,388.32 and 279,664.30

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Solution

The fourth proportional to 483,619.06, 667,388.32 and 279,664.30 is: 385,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,619.06 : 667,388.32 = 279,664.30 : x
  2. Step 2: Convert to fraction form
    483,619.06/667,388.32 = 279,664.30/x
  3. Step 3: Cross multiply
    483,619.06x = 667,388.32 × 279,664.30
  4. Step 4: Simplify right side
    483,619.06x = 186,644,687,340.98
  5. Step 5: Solve for x
    x = 186,644,687,340.98/483,619.06
  6. Step 6: Final answer
    x = 385,933.27

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1.5x scale

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.