Finding the Fourth Proportional to 871,252.20, 1,306,943.10 and 310,213.80
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Solution
The fourth proportional to 871,252.20, 1,306,943.10 and 310,213.80 is: 465,343.77
Step by Step Solution
- Step 1: Write the proportion equation
871,252.20 : 1,306,943.10 = 310,213.80 : x - Step 2: Convert to fraction form
871,252.20/1,306,943.10 = 310,213.80/x - Step 3: Cross multiply
871,252.20x = 1,306,943.10 × 310,213.80 - Step 4: Simplify right side
871,252.20x = 405,431,785,434.78 - Step 5: Solve for x
x = 405,431,785,434.78/871,252.20 - Step 6: Final answer
x = 465,343.77
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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.