Finding the Fourth Proportional to 743,971.88, 1,115,790.15 and 211,481.12
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Solution
The fourth proportional to 743,971.88, 1,115,790.15 and 211,481.12 is: 317,174.02
Step by Step Solution
- Step 1: Write the proportion equation
743,971.88 : 1,115,790.15 = 211,481.12 : x - Step 2: Convert to fraction form
743,971.88/1,115,790.15 = 211,481.12/x - Step 3: Cross multiply
743,971.88x = 1,115,790.15 × 211,481.12 - Step 4: Simplify right side
743,971.88x = 235,968,550,606.97 - Step 5: Solve for x
x = 235,968,550,606.97/743,971.88 - Step 6: Final answer
x = 317,174.02
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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.