Home / 1,218,879.90-1,682,058.96-675,003.78

Finding the Fourth Proportional to 1,218,879.90, 1,682,058.96 and 675,003.78

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Solution

The fourth proportional to 1,218,879.90, 1,682,058.96 and 675,003.78 is: 931,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,879.90 : 1,682,058.96 = 675,003.78 : x
  2. Step 2: Convert to fraction form
    1,218,879.90/1,682,058.96 = 675,003.78/x
  3. Step 3: Cross multiply
    1,218,879.90x = 1,682,058.96 × 675,003.78
  4. Step 4: Simplify right side
    1,218,879.90x = 1,135,396,156,182.87
  5. Step 5: Solve for x
    x = 1,135,396,156,182.87/1,218,879.90
  6. Step 6: Final answer
    x = 931,507.82

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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.