Finding the Fourth Proportional to 618,930.44, 854,126.18 and 389,639.43
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Solution
The fourth proportional to 618,930.44, 854,126.18 and 389,639.43 is: 537,703.78
Step by Step Solution
- Step 1: Write the proportion equation
618,930.44 : 854,126.18 = 389,639.43 : x - Step 2: Convert to fraction form
618,930.44/854,126.18 = 389,639.43/x - Step 3: Cross multiply
618,930.44x = 854,126.18 × 389,639.43 - Step 4: Simplify right side
618,930.44x = 332,801,235,975.08 - Step 5: Solve for x
x = 332,801,235,975.08/618,930.44 - Step 6: Final answer
x = 537,703.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.