Finding the Fourth Proportional to 870,874.70, 1,306,394.49 and 338,436.79
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Solution
The fourth proportional to 870,874.70, 1,306,394.49 and 338,436.79 is: 507,687.22
Step by Step Solution
- Step 1: Write the proportion equation
870,874.70 : 1,306,394.49 = 338,436.79 : x - Step 2: Convert to fraction form
870,874.70/1,306,394.49 = 338,436.79/x - Step 3: Cross multiply
870,874.70x = 1,306,394.49 × 338,436.79 - Step 4: Simplify right side
870,874.70x = 442,131,957,669.29 - Step 5: Solve for x
x = 442,131,957,669.29/870,874.70 - Step 6: Final answer
x = 507,687.22
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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.