Finding the Fourth Proportional to 1,338,549.39, 2,008,560.78 and 580,396.68
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Solution
The fourth proportional to 1,338,549.39, 2,008,560.78 and 580,396.68 is: 870,914.45
Step by Step Solution
- Step 1: Write the proportion equation
1,338,549.39 : 2,008,560.78 = 580,396.68 : x - Step 2: Convert to fraction form
1,338,549.39/2,008,560.78 = 580,396.68/x - Step 3: Cross multiply
1,338,549.39x = 2,008,560.78 × 580,396.68 - Step 4: Simplify right side
1,338,549.39x = 1,165,762,008,290.21 - Step 5: Solve for x
x = 1,165,762,008,290.21/1,338,549.39 - Step 6: Final answer
x = 870,914.45
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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.