Finding the Fourth Proportional to 1,321,900.75, 1,824,233.97 and 718,288.75
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Solution
The fourth proportional to 1,321,900.75, 1,824,233.97 and 718,288.75 is: 991,244.42
Step by Step Solution
- Step 1: Write the proportion equation
1,321,900.75 : 1,824,233.97 = 718,288.75 : x - Step 2: Convert to fraction form
1,321,900.75/1,824,233.97 = 718,288.75/x - Step 3: Cross multiply
1,321,900.75x = 1,824,233.97 × 718,288.75 - Step 4: Simplify right side
1,321,900.75x = 1,310,326,738,018.84 - Step 5: Solve for x
x = 1,310,326,738,018.84/1,321,900.75 - Step 6: Final answer
x = 991,244.42
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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.