Home / 1,321,244.78-1,823,286.78-777,415.79

Finding the Fourth Proportional to 1,321,244.78, 1,823,286.78 and 777,415.79

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Solution

The fourth proportional to 1,321,244.78, 1,823,286.78 and 777,415.79 is: 1,072,815.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,244.78 : 1,823,286.78 = 777,415.79 : x
  2. Step 2: Convert to fraction form
    1,321,244.78/1,823,286.78 = 777,415.79/x
  3. Step 3: Cross multiply
    1,321,244.78x = 1,823,286.78 × 777,415.79
  4. Step 4: Simplify right side
    1,321,244.78x = 1,417,451,932,470.26
  5. Step 5: Solve for x
    x = 1,417,451,932,470.26/1,321,244.78
  6. Step 6: Final answer
    x = 1,072,815.54

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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.