Home / 1,389,086.43-2,082,208.79-939,854.73

Finding the Fourth Proportional to 1,389,086.43, 2,082,208.79 and 939,854.73

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Solution

The fourth proportional to 1,389,086.43, 2,082,208.79 and 939,854.73 is: 1,408,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,086.43 : 2,082,208.79 = 939,854.73 : x
  2. Step 2: Convert to fraction form
    1,389,086.43/2,082,208.79 = 939,854.73/x
  3. Step 3: Cross multiply
    1,389,086.43x = 2,082,208.79 × 939,854.73
  4. Step 4: Simplify right side
    1,389,086.43x = 1,956,973,775,429.80
  5. Step 5: Solve for x
    x = 1,956,973,775,429.80/1,389,086.43
  6. Step 6: Final answer
    x = 1,408,820.74

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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.