Home / 1,138,673.72-1,571,369.81-622,429.66

Finding the Fourth Proportional to 1,138,673.72, 1,571,369.81 and 622,429.66

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Solution

The fourth proportional to 1,138,673.72, 1,571,369.81 and 622,429.66 is: 858,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,673.72 : 1,571,369.81 = 622,429.66 : x
  2. Step 2: Convert to fraction form
    1,138,673.72/1,571,369.81 = 622,429.66/x
  3. Step 3: Cross multiply
    1,138,673.72x = 1,571,369.81 × 622,429.66
  4. Step 4: Simplify right side
    1,138,673.72x = 978,067,176,572.57
  5. Step 5: Solve for x
    x = 978,067,176,572.57/1,138,673.72
  6. Step 6: Final answer
    x = 858,952.97

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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.