Finding the Fourth Proportional to 770,042.70, 1,062,604.98 and 447,729.93
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Solution
The fourth proportional to 770,042.70, 1,062,604.98 and 447,729.93 is: 617,835.94
Step by Step Solution
- Step 1: Write the proportion equation
770,042.70 : 1,062,604.98 = 447,729.93 : x - Step 2: Convert to fraction form
770,042.70/1,062,604.98 = 447,729.93/x - Step 3: Cross multiply
770,042.70x = 1,062,604.98 × 447,729.93 - Step 4: Simplify right side
770,042.70x = 475,760,053,313.05 - Step 5: Solve for x
x = 475,760,053,313.05/770,042.70 - Step 6: Final answer
x = 617,835.94
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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.