Finding the Fourth Proportional to 866,405.70, 1,299,608.55 and 656,453.70
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Solution
The fourth proportional to 866,405.70, 1,299,608.55 and 656,453.70 is: 984,680.55
Step by Step Solution
- Step 1: Write the proportion equation
866,405.70 : 1,299,608.55 = 656,453.70 : x - Step 2: Convert to fraction form
866,405.70/1,299,608.55 = 656,453.70/x - Step 3: Cross multiply
866,405.70x = 1,299,608.55 × 656,453.70 - Step 4: Simplify right side
866,405.70x = 853,132,841,199.14 - Step 5: Solve for x
x = 853,132,841,199.14/866,405.70 - Step 6: Final answer
x = 984,680.55
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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.