Home / 812,844.16-1,220,022.84-413,783.62

Finding the Fourth Proportional to 812,844.16, 1,220,022.84 and 413,783.62

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Solution

The fourth proportional to 812,844.16, 1,220,022.84 and 413,783.62 is: 621,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,844.16 : 1,220,022.84 = 413,783.62 : x
  2. Step 2: Convert to fraction form
    812,844.16/1,220,022.84 = 413,783.62/x
  3. Step 3: Cross multiply
    812,844.16x = 1,220,022.84 × 413,783.62
  4. Step 4: Simplify right side
    812,844.16x = 504,825,467,217.88
  5. Step 5: Solve for x
    x = 504,825,467,217.88/812,844.16
  6. Step 6: Final answer
    x = 621,060.58

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1.5x scale

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.