Finding the Fourth Proportional to 1,286,635.79, 1,775,770.34 and 713,860.49
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Solution
The fourth proportional to 1,286,635.79, 1,775,770.34 and 713,860.49 is: 985,245.62
Step by Step Solution
- Step 1: Write the proportion equation
1,286,635.79 : 1,775,770.34 = 713,860.49 : x - Step 2: Convert to fraction form
1,286,635.79/1,775,770.34 = 713,860.49/x - Step 3: Cross multiply
1,286,635.79x = 1,775,770.34 × 713,860.49 - Step 4: Simplify right side
1,286,635.79x = 1,267,652,272,591.71 - Step 5: Solve for x
x = 1,267,652,272,591.71/1,286,635.79 - Step 6: Final answer
x = 985,245.62
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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.