Home / 2,139,021.60-3,206,977.20-876,199.20

Finding the Fourth Proportional to 2,139,021.60, 3,206,977.20 and 876,199.20

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Solution

The fourth proportional to 2,139,021.60, 3,206,977.20 and 876,199.20 is: 1,313,661.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,021.60 : 3,206,977.20 = 876,199.20 : x
  2. Step 2: Convert to fraction form
    2,139,021.60/3,206,977.20 = 876,199.20/x
  3. Step 3: Cross multiply
    2,139,021.60x = 3,206,977.20 × 876,199.20
  4. Step 4: Simplify right side
    2,139,021.60x = 2,809,950,857,058.24
  5. Step 5: Solve for x
    x = 2,809,950,857,058.24/2,139,021.60
  6. Step 6: Final answer
    x = 1,313,661.75

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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.