Finding the Fourth Proportional to 1,396,855.40, 2,093,900.70 and 686,301.80
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Solution
The fourth proportional to 1,396,855.40, 2,093,900.70 and 686,301.80 is: 1,028,773.50
Step by Step Solution
- Step 1: Write the proportion equation
1,396,855.40 : 2,093,900.70 = 686,301.80 : x - Step 2: Convert to fraction form
1,396,855.40/2,093,900.70 = 686,301.80/x - Step 3: Cross multiply
1,396,855.40x = 2,093,900.70 × 686,301.80 - Step 4: Simplify right side
1,396,855.40x = 1,437,047,819,431.26 - Step 5: Solve for x
x = 1,437,047,819,431.26/1,396,855.40 - Step 6: Final answer
x = 1,028,773.50
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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.