Home / 1,287,778.24-1,777,140.83-804,623.57

Finding the Fourth Proportional to 1,287,778.24, 1,777,140.83 and 804,623.57

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Solution

The fourth proportional to 1,287,778.24, 1,777,140.83 and 804,623.57 is: 1,110,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,778.24 : 1,777,140.83 = 804,623.57 : x
  2. Step 2: Convert to fraction form
    1,287,778.24/1,777,140.83 = 804,623.57/x
  3. Step 3: Cross multiply
    1,287,778.24x = 1,777,140.83 × 804,623.57
  4. Step 4: Simplify right side
    1,287,778.24x = 1,429,929,392,153.22
  5. Step 5: Solve for x
    x = 1,429,929,392,153.22/1,287,778.24
  6. Step 6: Final answer
    x = 1,110,384.81

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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.