Finding the Fourth Proportional to 1,213,586.70, 1,821,877.65 and 764,306.70
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Solution
The fourth proportional to 1,213,586.70, 1,821,877.65 and 764,306.70 is: 1,147,403.23
Step by Step Solution
- Step 1: Write the proportion equation
1,213,586.70 : 1,821,877.65 = 764,306.70 : x - Step 2: Convert to fraction form
1,213,586.70/1,821,877.65 = 764,306.70/x - Step 3: Cross multiply
1,213,586.70x = 1,821,877.65 × 764,306.70 - Step 4: Simplify right side
1,213,586.70x = 1,392,473,294,475.25 - Step 5: Solve for x
x = 1,392,473,294,475.25/1,213,586.70 - Step 6: Final answer
x = 1,147,403.23
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.