Home / 809,859.78-1,213,456.77-277,089.66

Finding the Fourth Proportional to 809,859.78, 1,213,456.77 and 277,089.66

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Solution

The fourth proportional to 809,859.78, 1,213,456.77 and 277,089.66 is: 415,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859.78 : 1,213,456.77 = 277,089.66 : x
  2. Step 2: Convert to fraction form
    809,859.78/1,213,456.77 = 277,089.66/x
  3. Step 3: Cross multiply
    809,859.78x = 1,213,456.77 × 277,089.66
  4. Step 4: Simplify right side
    809,859.78x = 336,236,323,824.00
  5. Step 5: Solve for x
    x = 336,236,323,824.00/809,859.78
  6. Step 6: Final answer
    x = 415,178.44

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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.