Home / 1,022,768.91-1,410,835.77-640,131.39

Finding the Fourth Proportional to 1,022,768.91, 1,410,835.77 and 640,131.39

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Solution

The fourth proportional to 1,022,768.91, 1,410,835.77 and 640,131.39 is: 883,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,768.91 : 1,410,835.77 = 640,131.39 : x
  2. Step 2: Convert to fraction form
    1,022,768.91/1,410,835.77 = 640,131.39/x
  3. Step 3: Cross multiply
    1,022,768.91x = 1,410,835.77 × 640,131.39
  4. Step 4: Simplify right side
    1,022,768.91x = 903,120,262,511.82
  5. Step 5: Solve for x
    x = 903,120,262,511.82/1,022,768.91
  6. Step 6: Final answer
    x = 883,014.97

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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.