Finding the Fourth Proportional to 2,079,715.75, 2,869,515.79 and 1,208,032.63
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Solution
The fourth proportional to 2,079,715.75, 2,869,515.79 and 1,208,032.63 is: 1,666,799.28
Step by Step Solution
- Step 1: Write the proportion equation
2,079,715.75 : 2,869,515.79 = 1,208,032.63 : x - Step 2: Convert to fraction form
2,079,715.75/2,869,515.79 = 1,208,032.63/x - Step 3: Cross multiply
2,079,715.75x = 2,869,515.79 × 1,208,032.63 - Step 4: Simplify right side
2,079,715.75x = 3,466,468,706,620.23 - Step 5: Solve for x
x = 3,466,468,706,620.23/2,079,715.75 - Step 6: Final answer
x = 1,666,799.28
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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.