Finding the Fourth Proportional to 1,229,538.58, 1,696,759.94 and 685,674.99
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Solution
The fourth proportional to 1,229,538.58, 1,696,759.94 and 685,674.99 is: 946,229.65
Step by Step Solution
- Step 1: Write the proportion equation
1,229,538.58 : 1,696,759.94 = 685,674.99 : x - Step 2: Convert to fraction form
1,229,538.58/1,696,759.94 = 685,674.99/x - Step 3: Cross multiply
1,229,538.58x = 1,696,759.94 × 685,674.99 - Step 4: Simplify right side
1,229,538.58x = 1,163,425,856,021.78 - Step 5: Solve for x
x = 1,163,425,856,021.78/1,229,538.58 - Step 6: Final answer
x = 946,229.65
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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.