Home / 1,428,635.85-2,143,554.26-889,343.44

Finding the Fourth Proportional to 1,428,635.85, 2,143,554.26 and 889,343.44

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Solution

The fourth proportional to 1,428,635.85, 2,143,554.26 and 889,343.44 is: 1,334,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,635.85 : 2,143,554.26 = 889,343.44 : x
  2. Step 2: Convert to fraction form
    1,428,635.85/2,143,554.26 = 889,343.44/x
  3. Step 3: Cross multiply
    1,428,635.85x = 2,143,554.26 × 889,343.44
  4. Step 4: Simplify right side
    1,428,635.85x = 1,906,355,904,250.57
  5. Step 5: Solve for x
    x = 1,906,355,904,250.57/1,428,635.85
  6. Step 6: Final answer
    x = 1,334,388.96

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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.