Finding the Fourth Proportional to 694,085.24, 957,886.44 and 388,190.09
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Solution
The fourth proportional to 694,085.24, 957,886.44 and 388,190.09 is: 535,729.62
Step by Step Solution
- Step 1: Write the proportion equation
694,085.24 : 957,886.44 = 388,190.09 : x - Step 2: Convert to fraction form
694,085.24/957,886.44 = 388,190.09/x - Step 3: Cross multiply
694,085.24x = 957,886.44 × 388,190.09 - Step 4: Simplify right side
694,085.24x = 371,842,021,087.84 - Step 5: Solve for x
x = 371,842,021,087.84/694,085.24 - Step 6: Final answer
x = 535,729.62
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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.