Home / 1,978,686.50-2,967,273.13-1,079,647.66

Finding the Fourth Proportional to 1,978,686.50, 2,967,273.13 and 1,079,647.66

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Solution

The fourth proportional to 1,978,686.50, 2,967,273.13 and 1,079,647.66 is: 1,619,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,686.50 : 2,967,273.13 = 1,079,647.66 : x
  2. Step 2: Convert to fraction form
    1,978,686.50/2,967,273.13 = 1,079,647.66/x
  3. Step 3: Cross multiply
    1,978,686.50x = 2,967,273.13 × 1,079,647.66
  4. Step 4: Simplify right side
    1,978,686.50x = 3,203,609,491,385.38
  5. Step 5: Solve for x
    x = 3,203,609,491,385.38/1,978,686.50
  6. Step 6: Final answer
    x = 1,619,058.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.