Finding the Fourth Proportional to 678,405.26, 1,017,755.51 and 205,078.31
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Solution
The fourth proportional to 678,405.26, 1,017,755.51 and 205,078.31 is: 307,662.09
Step by Step Solution
- Step 1: Write the proportion equation
678,405.26 : 1,017,755.51 = 205,078.31 : x - Step 2: Convert to fraction form
678,405.26/1,017,755.51 = 205,078.31/x - Step 3: Cross multiply
678,405.26x = 1,017,755.51 × 205,078.31 - Step 4: Simplify right side
678,405.26x = 208,719,581,502.99 - Step 5: Solve for x
x = 208,719,581,502.99/678,405.26 - Step 6: Final answer
x = 307,662.09
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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.