Home / 812,110.37-1,120,698.74-449,526.44

Finding the Fourth Proportional to 812,110.37, 1,120,698.74 and 449,526.44

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Solution

The fourth proportional to 812,110.37, 1,120,698.74 and 449,526.44 is: 620,338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,110.37 : 1,120,698.74 = 449,526.44 : x
  2. Step 2: Convert to fraction form
    812,110.37/1,120,698.74 = 449,526.44/x
  3. Step 3: Cross multiply
    812,110.37x = 1,120,698.74 × 449,526.44
  4. Step 4: Simplify right side
    812,110.37x = 503,783,707,053.56
  5. Step 5: Solve for x
    x = 503,783,707,053.56/812,110.37
  6. Step 6: Final answer
    x = 620,338.97

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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.