Home / 1,422,979.26-2,131,048.76-813,921.14

Finding the Fourth Proportional to 1,422,979.26, 2,131,048.76 and 813,921.14

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Solution

The fourth proportional to 1,422,979.26, 2,131,048.76 and 813,921.14 is: 1,218,925.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,979.26 : 2,131,048.76 = 813,921.14 : x
  2. Step 2: Convert to fraction form
    1,422,979.26/2,131,048.76 = 813,921.14/x
  3. Step 3: Cross multiply
    1,422,979.26x = 2,131,048.76 × 813,921.14
  4. Step 4: Simplify right side
    1,422,979.26x = 1,734,505,621,409.94
  5. Step 5: Solve for x
    x = 1,734,505,621,409.94/1,422,979.26
  6. Step 6: Final answer
    x = 1,218,925.44

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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.