Finding the Fourth Proportional to 1,040,328.49, 1,560,546.74 and 330,412.09
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Solution
The fourth proportional to 1,040,328.49, 1,560,546.74 and 330,412.09 is: 495,635.29
Step by Step Solution
- Step 1: Write the proportion equation
1,040,328.49 : 1,560,546.74 = 330,412.09 : x - Step 2: Convert to fraction form
1,040,328.49/1,560,546.74 = 330,412.09/x - Step 3: Cross multiply
1,040,328.49x = 1,560,546.74 × 330,412.09 - Step 4: Simplify right side
1,040,328.49x = 515,623,509,906.09 - Step 5: Solve for x
x = 515,623,509,906.09/1,040,328.49 - Step 6: Final answer
x = 495,635.29
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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.