Finding the Fourth Proportional to 1,286,850.18, 1,775,855.34 and 713,890.36
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Solution
The fourth proportional to 1,286,850.18, 1,775,855.34 and 713,890.36 is: 985,169.85
Step by Step Solution
- Step 1: Write the proportion equation
1,286,850.18 : 1,775,855.34 = 713,890.36 : x - Step 2: Convert to fraction form
1,286,850.18/1,775,855.34 = 713,890.36/x - Step 3: Cross multiply
1,286,850.18x = 1,775,855.34 × 713,890.36 - Step 4: Simplify right side
1,286,850.18x = 1,267,766,003,540.88 - Step 5: Solve for x
x = 1,267,766,003,540.88/1,286,850.18 - Step 6: Final answer
x = 985,169.85
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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.