Home / 2,740,907.80-4,111,361.70-1,321,107.40

Finding the Fourth Proportional to 2,740,907.80, 4,111,361.70 and 1,321,107.40

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Solution

The fourth proportional to 2,740,907.80, 4,111,361.70 and 1,321,107.40 is: 1,981,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740,907.80 : 4,111,361.70 = 1,321,107.40 : x
  2. Step 2: Convert to fraction form
    2,740,907.80/4,111,361.70 = 1,321,107.40/x
  3. Step 3: Cross multiply
    2,740,907.80x = 4,111,361.70 × 1,321,107.40
  4. Step 4: Simplify right side
    2,740,907.80x = 5,431,550,365,946.58
  5. Step 5: Solve for x
    x = 5,431,550,365,946.58/2,740,907.80
  6. Step 6: Final answer
    x = 1,981,661.10

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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.