Finding the Fourth Proportional to 694,227.70, 958,122.97 and 388,321.07
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Solution
The fourth proportional to 694,227.70, 958,122.97 and 388,321.07 is: 535,932.72
Step by Step Solution
- Step 1: Write the proportion equation
694,227.70 : 958,122.97 = 388,321.07 : x - Step 2: Convert to fraction form
694,227.70/958,122.97 = 388,321.07/x - Step 3: Cross multiply
694,227.70x = 958,122.97 × 388,321.07 - Step 4: Simplify right side
694,227.70x = 372,059,336,901.98 - Step 5: Solve for x
x = 372,059,336,901.98/694,227.70 - Step 6: Final answer
x = 535,932.72
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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.