Home / 1,208,165.88-1,667,305.20-664,273.56

Finding the Fourth Proportional to 1,208,165.88, 1,667,305.20 and 664,273.56

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Solution

The fourth proportional to 1,208,165.88, 1,667,305.20 and 664,273.56 is: 916,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,165.88 : 1,667,305.20 = 664,273.56 : x
  2. Step 2: Convert to fraction form
    1,208,165.88/1,667,305.20 = 664,273.56/x
  3. Step 3: Cross multiply
    1,208,165.88x = 1,667,305.20 × 664,273.56
  4. Step 4: Simplify right side
    1,208,165.88x = 1,107,546,760,810.51
  5. Step 5: Solve for x
    x = 1,107,546,760,810.51/1,208,165.88
  6. Step 6: Final answer
    x = 916,717.46

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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.