Home / 1,287,778.49-1,777,141.18-804,623.82

Finding the Fourth Proportional to 1,287,778.49, 1,777,141.18 and 804,623.82

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Solution

The fourth proportional to 1,287,778.49, 1,777,141.18 and 804,623.82 is: 1,110,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,778.49 : 1,777,141.18 = 804,623.82 : x
  2. Step 2: Convert to fraction form
    1,287,778.49/1,777,141.18 = 804,623.82/x
  3. Step 3: Cross multiply
    1,287,778.49x = 1,777,141.18 × 804,623.82
  4. Step 4: Simplify right side
    1,287,778.49x = 1,429,930,124,930.91
  5. Step 5: Solve for x
    x = 1,429,930,124,930.91/1,287,778.49
  6. Step 6: Final answer
    x = 1,110,385.16

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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.