Finding the Fourth Proportional to 1,990,617.36, 2,747,037.96 and 1,085,205.84
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Solution
The fourth proportional to 1,990,617.36, 2,747,037.96 and 1,085,205.84 is: 1,497,576.43
Step by Step Solution
- Step 1: Write the proportion equation
1,990,617.36 : 2,747,037.96 = 1,085,205.84 : x - Step 2: Convert to fraction form
1,990,617.36/2,747,037.96 = 1,085,205.84/x - Step 3: Cross multiply
1,990,617.36x = 2,747,037.96 × 1,085,205.84 - Step 4: Simplify right side
1,990,617.36x = 2,981,101,636,893.69 - Step 5: Solve for x
x = 2,981,101,636,893.69/1,990,617.36 - Step 6: Final answer
x = 1,497,576.43
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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.