Home / 1,313,440.80-1,971,716.40-1,304,109.60

Finding the Fourth Proportional to 1,313,440.80, 1,971,716.40 and 1,304,109.60

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Solution

The fourth proportional to 1,313,440.80, 1,971,716.40 and 1,304,109.60 is: 1,957,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,440.80 : 1,971,716.40 = 1,304,109.60 : x
  2. Step 2: Convert to fraction form
    1,313,440.80/1,971,716.40 = 1,304,109.60/x
  3. Step 3: Cross multiply
    1,313,440.80x = 1,971,716.40 × 1,304,109.60
  4. Step 4: Simplify right side
    1,313,440.80x = 2,571,334,285,717.44
  5. Step 5: Solve for x
    x = 2,571,334,285,717.44/1,313,440.80
  6. Step 6: Final answer
    x = 1,957,708.55

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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.