Home / 2,166,288.60-2,989,571.70-1,199,418.96

Finding the Fourth Proportional to 2,166,288.60, 2,989,571.70 and 1,199,418.96

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Solution

The fourth proportional to 2,166,288.60, 2,989,571.70 and 1,199,418.96 is: 1,655,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,288.60 : 2,989,571.70 = 1,199,418.96 : x
  2. Step 2: Convert to fraction form
    2,166,288.60/2,989,571.70 = 1,199,418.96/x
  3. Step 3: Cross multiply
    2,166,288.60x = 2,989,571.70 × 1,199,418.96
  4. Step 4: Simplify right side
    2,166,288.60x = 3,585,748,979,259.43
  5. Step 5: Solve for x
    x = 3,585,748,979,259.43/2,166,288.60
  6. Step 6: Final answer
    x = 1,655,249.90

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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.