Finding the Fourth Proportional to 2,124,997.81, 2,932,576.11 and 1,207,382.54
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Solution
The fourth proportional to 2,124,997.81, 2,932,576.11 and 1,207,382.54 is: 1,666,232.86
Step by Step Solution
- Step 1: Write the proportion equation
2,124,997.81 : 2,932,576.11 = 1,207,382.54 : x - Step 2: Convert to fraction form
2,124,997.81/2,932,576.11 = 1,207,382.54/x - Step 3: Cross multiply
2,124,997.81x = 2,932,576.11 × 1,207,382.54 - Step 4: Simplify right side
2,124,997.81x = 3,540,741,177,772.24 - Step 5: Solve for x
x = 3,540,741,177,772.24/2,124,997.81 - Step 6: Final answer
x = 1,666,232.86
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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.