Home / 1,085,743.82-1,628,615.73-743,850.11

Finding the Fourth Proportional to 1,085,743.82, 1,628,615.73 and 743,850.11

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Solution

The fourth proportional to 1,085,743.82, 1,628,615.73 and 743,850.11 is: 1,115,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,743.82 : 1,628,615.73 = 743,850.11 : x
  2. Step 2: Convert to fraction form
    1,085,743.82/1,628,615.73 = 743,850.11/x
  3. Step 3: Cross multiply
    1,085,743.82x = 1,628,615.73 × 743,850.11
  4. Step 4: Simplify right side
    1,085,743.82x = 1,211,445,989,908.23
  5. Step 5: Solve for x
    x = 1,211,445,989,908.23/1,085,743.82
  6. Step 6: Final answer
    x = 1,115,775.17

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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.