Home / 1,948,320.48-2,922,716.88-685,889.76

Finding the Fourth Proportional to 1,948,320.48, 2,922,716.88 and 685,889.76

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Solution

The fourth proportional to 1,948,320.48, 2,922,716.88 and 685,889.76 is: 1,028,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,320.48 : 2,922,716.88 = 685,889.76 : x
  2. Step 2: Convert to fraction form
    1,948,320.48/2,922,716.88 = 685,889.76/x
  3. Step 3: Cross multiply
    1,948,320.48x = 2,922,716.88 × 685,889.76
  4. Step 4: Simplify right side
    1,948,320.48x = 2,004,661,579,371.15
  5. Step 5: Solve for x
    x = 2,004,661,579,371.15/1,948,320.48
  6. Step 6: Final answer
    x = 1,028,917.78

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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.