Finding the Fourth Proportional to 2,161,674.68, 2,983,122.78 and 1,181,615.05
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Solution
The fourth proportional to 2,161,674.68, 2,983,122.78 and 1,181,615.05 is: 1,630,635.17
Step by Step Solution
- Step 1: Write the proportion equation
2,161,674.68 : 2,983,122.78 = 1,181,615.05 : x - Step 2: Convert to fraction form
2,161,674.68/2,983,122.78 = 1,181,615.05/x - Step 3: Cross multiply
2,161,674.68x = 2,983,122.78 × 1,181,615.05 - Step 4: Simplify right side
2,161,674.68x = 3,524,902,757,930.22 - Step 5: Solve for x
x = 3,524,902,757,930.22/2,161,674.68 - Step 6: Final answer
x = 1,630,635.17
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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.