Finding the Fourth Proportional to 1,591,841.70, 2,192,557.21 and 1,223,614.49
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Solution
The fourth proportional to 1,591,841.70, 2,192,557.21 and 1,223,614.49 is: 1,685,371.58
Step by Step Solution
- Step 1: Write the proportion equation
1,591,841.70 : 2,192,557.21 = 1,223,614.49 : x - Step 2: Convert to fraction form
1,591,841.70/2,192,557.21 = 1,223,614.49/x - Step 3: Cross multiply
1,591,841.70x = 2,192,557.21 × 1,223,614.49 - Step 4: Simplify right side
1,591,841.70x = 2,682,844,758,288.15 - Step 5: Solve for x
x = 2,682,844,758,288.15/1,591,841.70 - Step 6: Final answer
x = 1,685,371.58
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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.