Home / 1,493,919.36-2,240,571.64-428,724

Finding the Fourth Proportional to 1,493,919.36, 2,240,571.64 and 428,724

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Solution

The fourth proportional to 1,493,919.36, 2,240,571.64 and 428,724 is: 642,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,919.36 : 2,240,571.64 = 428,724 : x
  2. Step 2: Convert to fraction form
    1,493,919.36/2,240,571.64 = 428,724/x
  3. Step 3: Cross multiply
    1,493,919.36x = 2,240,571.64 × 428,724
  4. Step 4: Simplify right side
    1,493,919.36x = 960,586,835,787.36
  5. Step 5: Solve for x
    x = 960,586,835,787.36/1,493,919.36
  6. Step 6: Final answer
    x = 642,997.78

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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.