Finding the Fourth Proportional to 2,957,716.85, 4,081,688.93 and 1,668,553.25
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Solution
The fourth proportional to 2,957,716.85, 4,081,688.93 and 1,668,553.25 is: 2,302,625.87
Step by Step Solution
- Step 1: Write the proportion equation
2,957,716.85 : 4,081,688.93 = 1,668,553.25 : x - Step 2: Convert to fraction form
2,957,716.85/4,081,688.93 = 1,668,553.25/x - Step 3: Cross multiply
2,957,716.85x = 4,081,688.93 × 1,668,553.25 - Step 4: Simplify right side
2,957,716.85x = 6,810,515,313,403.46 - Step 5: Solve for x
x = 6,810,515,313,403.46/2,957,716.85 - Step 6: Final answer
x = 2,302,625.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.