Home / 1,287,789.62-1,777,156.54-804,634.94

Finding the Fourth Proportional to 1,287,789.62, 1,777,156.54 and 804,634.94

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Solution

The fourth proportional to 1,287,789.62, 1,777,156.54 and 804,634.94 is: 1,110,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,789.62 : 1,777,156.54 = 804,634.94 : x
  2. Step 2: Convert to fraction form
    1,287,789.62/1,777,156.54 = 804,634.94/x
  3. Step 3: Cross multiply
    1,287,789.62x = 1,777,156.54 × 804,634.94
  4. Step 4: Simplify right side
    1,287,789.62x = 1,429,962,245,933.51
  5. Step 5: Solve for x
    x = 1,429,962,245,933.51/1,287,789.62
  6. Step 6: Final answer
    x = 1,110,400.51

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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.