Home / 1,391,211.94-2,088,936.87-1,322,706.64

Finding the Fourth Proportional to 1,391,211.94, 2,088,936.87 and 1,322,706.64

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Solution

The fourth proportional to 1,391,211.94, 2,088,936.87 and 1,322,706.64 is: 1,986,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,211.94 : 2,088,936.87 = 1,322,706.64 : x
  2. Step 2: Convert to fraction form
    1,391,211.94/2,088,936.87 = 1,322,706.64/x
  3. Step 3: Cross multiply
    1,391,211.94x = 2,088,936.87 × 1,322,706.64
  4. Step 4: Simplify right side
    1,391,211.94x = 2,763,050,668,489.82
  5. Step 5: Solve for x
    x = 2,763,050,668,489.82/1,391,211.94
  6. Step 6: Final answer
    x = 1,986,074.58

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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.