Finding the Fourth Proportional to 820,670.24, 1,132,713.84 and 481,247.84
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Solution
The fourth proportional to 820,670.24, 1,132,713.84 and 481,247.84 is: 664,232.80
Step by Step Solution
- Step 1: Write the proportion equation
820,670.24 : 1,132,713.84 = 481,247.84 : x - Step 2: Convert to fraction form
820,670.24/1,132,713.84 = 481,247.84/x - Step 3: Cross multiply
820,670.24x = 1,132,713.84 × 481,247.84 - Step 4: Simplify right side
820,670.24x = 545,116,088,838.11 - Step 5: Solve for x
x = 545,116,088,838.11/820,670.24 - Step 6: Final answer
x = 664,232.80
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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.