Home / 2,107,705.70-2,907,855.78-1,382,955.78

Finding the Fourth Proportional to 2,107,705.70, 2,907,855.78 and 1,382,955.78

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Solution

The fourth proportional to 2,107,705.70, 2,907,855.78 and 1,382,955.78 is: 1,907,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,705.70 : 2,907,855.78 = 1,382,955.78 : x
  2. Step 2: Convert to fraction form
    2,107,705.70/2,907,855.78 = 1,382,955.78/x
  3. Step 3: Cross multiply
    2,107,705.70x = 2,907,855.78 × 1,382,955.78
  4. Step 4: Simplify right side
    2,107,705.70x = 4,021,435,958,357.41
  5. Step 5: Solve for x
    x = 4,021,435,958,357.41/2,107,705.70
  6. Step 6: Final answer
    x = 1,907,968.44

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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.