Finding the Fourth Proportional to 1,936,431.70, 2,901,990.24 and 1,225,186.49
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Solution
The fourth proportional to 1,936,431.70, 2,901,990.24 and 1,225,186.49 is: 1,836,098.45
Step by Step Solution
- Step 1: Write the proportion equation
1,936,431.70 : 2,901,990.24 = 1,225,186.49 : x - Step 2: Convert to fraction form
1,936,431.70/2,901,990.24 = 1,225,186.49/x - Step 3: Cross multiply
1,936,431.70x = 2,901,990.24 × 1,225,186.49 - Step 4: Simplify right side
1,936,431.70x = 3,555,479,243,414.83 - Step 5: Solve for x
x = 3,555,479,243,414.83/1,936,431.70 - Step 6: Final answer
x = 1,836,098.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.