Home / 1,769,990.40-2,442,441.60-1,005,868.80

Finding the Fourth Proportional to 1,769,990.40, 2,442,441.60 and 1,005,868.80

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Solution

The fourth proportional to 1,769,990.40, 2,442,441.60 and 1,005,868.80 is: 1,388,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,990.40 : 2,442,441.60 = 1,005,868.80 : x
  2. Step 2: Convert to fraction form
    1,769,990.40/2,442,441.60 = 1,005,868.80/x
  3. Step 3: Cross multiply
    1,769,990.40x = 2,442,441.60 × 1,005,868.80
  4. Step 4: Simplify right side
    1,769,990.40x = 2,456,775,801,262.08
  5. Step 5: Solve for x
    x = 2,456,775,801,262.08/1,769,990.40
  6. Step 6: Final answer
    x = 1,388,016.46

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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.