Finding the Fourth Proportional to 1,531,283.68, 2,297,408.25 and 721,635.40
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Solution
The fourth proportional to 1,531,283.68, 2,297,408.25 and 721,635.40 is: 1,082,680.59
Step by Step Solution
- Step 1: Write the proportion equation
1,531,283.68 : 2,297,408.25 = 721,635.40 : x - Step 2: Convert to fraction form
1,531,283.68/2,297,408.25 = 721,635.40/x - Step 3: Cross multiply
1,531,283.68x = 2,297,408.25 × 721,635.40 - Step 4: Simplify right side
1,531,283.68x = 1,657,891,121,452.05 - Step 5: Solve for x
x = 1,657,891,121,452.05/1,531,283.68 - Step 6: Final answer
x = 1,082,680.59
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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.