Finding the Fourth Proportional to 871,302.10, 1,202,381.78 and 484,121.09
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Solution
The fourth proportional to 871,302.10, 1,202,381.78 and 484,121.09 is: 668,078.70
Step by Step Solution
- Step 1: Write the proportion equation
871,302.10 : 1,202,381.78 = 484,121.09 : x - Step 2: Convert to fraction form
871,302.10/1,202,381.78 = 484,121.09/x - Step 3: Cross multiply
871,302.10x = 1,202,381.78 × 484,121.09 - Step 4: Simplify right side
871,302.10x = 582,098,377,929.74 - Step 5: Solve for x
x = 582,098,377,929.74/871,302.10 - Step 6: Final answer
x = 668,078.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.