Finding the Fourth Proportional to 2,391,857.81, 3,589,467.92 and 2,163,172.09
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Solution
The fourth proportional to 2,391,857.81, 3,589,467.92 and 2,163,172.09 is: 3,246,278.60
Step by Step Solution
- Step 1: Write the proportion equation
2,391,857.81 : 3,589,467.92 = 2,163,172.09 : x - Step 2: Convert to fraction form
2,391,857.81/3,589,467.92 = 2,163,172.09/x - Step 3: Cross multiply
2,391,857.81x = 3,589,467.92 × 2,163,172.09 - Step 4: Simplify right side
2,391,857.81x = 7,764,636,822,494.35 - Step 5: Solve for x
x = 7,764,636,822,494.35/2,391,857.81 - Step 6: Final answer
x = 3,246,278.60
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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.