Home / 2,821,378-4,227,918.72-1,667,436.88

Finding the Fourth Proportional to 2,821,378, 4,227,918.72 and 1,667,436.88

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Solution

The fourth proportional to 2,821,378, 4,227,918.72 and 1,667,436.88 is: 2,498,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,378 : 4,227,918.72 = 1,667,436.88 : x
  2. Step 2: Convert to fraction form
    2,821,378/4,227,918.72 = 1,667,436.88/x
  3. Step 3: Cross multiply
    2,821,378x = 4,227,918.72 × 1,667,436.88
  4. Step 4: Simplify right side
    2,821,378x = 7,049,787,599,370.39
  5. Step 5: Solve for x
    x = 7,049,787,599,370.39/2,821,378
  6. Step 6: Final answer
    x = 2,498,703.68

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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.