Home / 2,685,912.40-4,028,868.60-2,657,918.80

Finding the Fourth Proportional to 2,685,912.40, 4,028,868.60 and 2,657,918.80

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Solution

The fourth proportional to 2,685,912.40, 4,028,868.60 and 2,657,918.80 is: 3,986,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685,912.40 : 4,028,868.60 = 2,657,918.80 : x
  2. Step 2: Convert to fraction form
    2,685,912.40/4,028,868.60 = 2,657,918.80/x
  3. Step 3: Cross multiply
    2,685,912.40x = 4,028,868.60 × 2,657,918.80
  4. Step 4: Simplify right side
    2,685,912.40x = 10,708,405,594,669.68
  5. Step 5: Solve for x
    x = 10,708,405,594,669.68/2,685,912.40
  6. Step 6: Final answer
    x = 3,986,878.20

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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.