Finding the Fourth Proportional to 821,183.87, 1,125,003.09 and 790,481.57
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Solution
The fourth proportional to 821,183.87, 1,125,003.09 and 790,481.57 is: 1,082,941.65
Step by Step Solution
- Step 1: Write the proportion equation
821,183.87 : 1,125,003.09 = 790,481.57 : x - Step 2: Convert to fraction form
821,183.87/1,125,003.09 = 790,481.57/x - Step 3: Cross multiply
821,183.87x = 1,125,003.09 × 790,481.57 - Step 4: Simplify right side
821,183.87x = 889,294,211,650.56 - Step 5: Solve for x
x = 889,294,211,650.56/821,183.87 - Step 6: Final answer
x = 1,082,941.65
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.