Finding the Fourth Proportional to 721,779.49, 1,082,177.15 and 366,107.68
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Solution
The fourth proportional to 721,779.49, 1,082,177.15 and 366,107.68 is: 548,911.92
Step by Step Solution
- Step 1: Write the proportion equation
721,779.49 : 1,082,177.15 = 366,107.68 : x - Step 2: Convert to fraction form
721,779.49/1,082,177.15 = 366,107.68/x - Step 3: Cross multiply
721,779.49x = 1,082,177.15 × 366,107.68 - Step 4: Simplify right side
721,779.49x = 396,193,360,324.63 - Step 5: Solve for x
x = 396,193,360,324.63/721,779.49 - Step 6: Final answer
x = 548,911.92
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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.