Finding the Fourth Proportional to 1,391,125.26, 2,080,554.57 and 1,211,013.66
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Solution
The fourth proportional to 1,391,125.26, 2,080,554.57 and 1,211,013.66 is: 1,811,181.26
Step by Step Solution
- Step 1: Write the proportion equation
1,391,125.26 : 2,080,554.57 = 1,211,013.66 : x - Step 2: Convert to fraction form
1,391,125.26/2,080,554.57 = 1,211,013.66/x - Step 3: Cross multiply
1,391,125.26x = 2,080,554.57 × 1,211,013.66 - Step 4: Simplify right side
1,391,125.26x = 2,519,580,004,645.43 - Step 5: Solve for x
x = 2,519,580,004,645.43/1,391,125.26 - Step 6: Final answer
x = 1,811,181.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.