Finding the Fourth Proportional to 721,619.75, 1,082,407.26 and 342,813.08
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Solution
The fourth proportional to 721,619.75, 1,082,407.26 and 342,813.08 is: 514,209.00
Step by Step Solution
- Step 1: Write the proportion equation
721,619.75 : 1,082,407.26 = 342,813.08 : x - Step 2: Convert to fraction form
721,619.75/1,082,407.26 = 342,813.08/x - Step 3: Cross multiply
721,619.75x = 1,082,407.26 × 342,813.08 - Step 4: Simplify right side
721,619.75x = 371,063,366,614.96 - Step 5: Solve for x
x = 371,063,366,614.96/721,619.75 - Step 6: Final answer
x = 514,209.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.