Home / 1,764,188.82-2,434,434.21-989,713.74

Finding the Fourth Proportional to 1,764,188.82, 2,434,434.21 and 989,713.74

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Solution

The fourth proportional to 1,764,188.82, 2,434,434.21 and 989,713.74 is: 1,365,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,188.82 : 2,434,434.21 = 989,713.74 : x
  2. Step 2: Convert to fraction form
    1,764,188.82/2,434,434.21 = 989,713.74/x
  3. Step 3: Cross multiply
    1,764,188.82x = 2,434,434.21 × 989,713.74
  4. Step 4: Simplify right side
    1,764,188.82x = 2,409,392,986,763.05
  5. Step 5: Solve for x
    x = 2,409,392,986,763.05/1,764,188.82
  6. Step 6: Final answer
    x = 1,365,722.85

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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.