Home / 1,578,961.41-2,178,979.82-871,745.83

Finding the Fourth Proportional to 1,578,961.41, 2,178,979.82 and 871,745.83

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Solution

The fourth proportional to 1,578,961.41, 2,178,979.82 and 871,745.83 is: 1,203,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,961.41 : 2,178,979.82 = 871,745.83 : x
  2. Step 2: Convert to fraction form
    1,578,961.41/2,178,979.82 = 871,745.83/x
  3. Step 3: Cross multiply
    1,578,961.41x = 2,178,979.82 × 871,745.83
  4. Step 4: Simplify right side
    1,578,961.41x = 1,899,516,578,072.33
  5. Step 5: Solve for x
    x = 1,899,516,578,072.33/1,578,961.41
  6. Step 6: Final answer
    x = 1,203,016.47

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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.