Home / 769,626.24-1,061,992.20-425,415.68

Finding the Fourth Proportional to 769,626.24, 1,061,992.20 and 425,415.68

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Solution

The fourth proportional to 769,626.24, 1,061,992.20 and 425,415.68 is: 587,022.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,626.24 : 1,061,992.20 = 425,415.68 : x
  2. Step 2: Convert to fraction form
    769,626.24/1,061,992.20 = 425,415.68/x
  3. Step 3: Cross multiply
    769,626.24x = 1,061,992.20 × 425,415.68
  4. Step 4: Simplify right side
    769,626.24x = 451,788,133,917.70
  5. Step 5: Solve for x
    x = 451,788,133,917.70/769,626.24
  6. Step 6: Final answer
    x = 587,022.78

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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.