Finding the Fourth Proportional to 1,207,112.21, 1,810,668.96 and 448,855.14
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Solution
The fourth proportional to 1,207,112.21, 1,810,668.96 and 448,855.14 is: 673,282.95
Step by Step Solution
- Step 1: Write the proportion equation
1,207,112.21 : 1,810,668.96 = 448,855.14 : x - Step 2: Convert to fraction form
1,207,112.21/1,810,668.96 = 448,855.14/x - Step 3: Cross multiply
1,207,112.21x = 1,810,668.96 × 448,855.14 - Step 4: Simplify right side
1,207,112.21x = 812,728,069,534.46 - Step 5: Solve for x
x = 812,728,069,534.46/1,207,112.21 - Step 6: Final answer
x = 673,282.95
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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.