Home / 1,085,742.82-1,628,614.23-743,849.11

Finding the Fourth Proportional to 1,085,742.82, 1,628,614.23 and 743,849.11

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Solution

The fourth proportional to 1,085,742.82, 1,628,614.23 and 743,849.11 is: 1,115,773.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,742.82 : 1,628,614.23 = 743,849.11 : x
  2. Step 2: Convert to fraction form
    1,085,742.82/1,628,614.23 = 743,849.11/x
  3. Step 3: Cross multiply
    1,085,742.82x = 1,628,614.23 × 743,849.11
  4. Step 4: Simplify right side
    1,085,742.82x = 1,211,443,245,518.84
  5. Step 5: Solve for x
    x = 1,211,443,245,518.84/1,085,742.82
  6. Step 6: Final answer
    x = 1,115,773.67

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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.