Finding the Fourth Proportional to 683,945.19, 943,845.28 and 393,550.99
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Solution
The fourth proportional to 683,945.19, 943,845.28 and 393,550.99 is: 543,100.89
Step by Step Solution
- Step 1: Write the proportion equation
683,945.19 : 943,845.28 = 393,550.99 : x - Step 2: Convert to fraction form
683,945.19/943,845.28 = 393,550.99/x - Step 3: Cross multiply
683,945.19x = 943,845.28 × 393,550.99 - Step 4: Simplify right side
683,945.19x = 371,451,241,007.34 - Step 5: Solve for x
x = 371,451,241,007.34/683,945.19 - Step 6: Final answer
x = 543,100.89
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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.