Home / 1,640,288.32-2,263,546.56-961,676.80

Finding the Fourth Proportional to 1,640,288.32, 2,263,546.56 and 961,676.80

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Solution

The fourth proportional to 1,640,288.32, 2,263,546.56 and 961,676.80 is: 1,327,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,288.32 : 2,263,546.56 = 961,676.80 : x
  2. Step 2: Convert to fraction form
    1,640,288.32/2,263,546.56 = 961,676.80/x
  3. Step 3: Cross multiply
    1,640,288.32x = 2,263,546.56 × 961,676.80
  4. Step 4: Simplify right side
    1,640,288.32x = 2,176,800,212,471.81
  5. Step 5: Solve for x
    x = 2,176,800,212,471.81/1,640,288.32
  6. Step 6: Final answer
    x = 1,327,083.89

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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.