Finding the Fourth Proportional to 1,286,729.44, 1,775,694.64 and 713,805.92
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Solution
The fourth proportional to 1,286,729.44, 1,775,694.64 and 713,805.92 is: 985,056.61
Step by Step Solution
- Step 1: Write the proportion equation
1,286,729.44 : 1,775,694.64 = 713,805.92 : x - Step 2: Convert to fraction form
1,286,729.44/1,775,694.64 = 713,805.92/x - Step 3: Cross multiply
1,286,729.44x = 1,775,694.64 × 713,805.92 - Step 4: Simplify right side
1,286,729.44x = 1,267,501,346,144.27 - Step 5: Solve for x
x = 1,267,501,346,144.27/1,286,729.44 - Step 6: Final answer
x = 985,056.61
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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.