Home / 1,973,801.34-2,722,708.89-1,188,320.45

Finding the Fourth Proportional to 1,973,801.34, 2,722,708.89 and 1,188,320.45

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Solution

The fourth proportional to 1,973,801.34, 2,722,708.89 and 1,188,320.45 is: 1,639,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,801.34 : 2,722,708.89 = 1,188,320.45 : x
  2. Step 2: Convert to fraction form
    1,973,801.34/2,722,708.89 = 1,188,320.45/x
  3. Step 3: Cross multiply
    1,973,801.34x = 2,722,708.89 × 1,188,320.45
  4. Step 4: Simplify right side
    1,973,801.34x = 3,235,450,639,770.26
  5. Step 5: Solve for x
    x = 3,235,450,639,770.26/1,973,801.34
  6. Step 6: Final answer
    x = 1,639,197.71

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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.