Finding the Fourth Proportional to 1,079,278.75, 1,618,635.93 and 320,915.98
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Solution
The fourth proportional to 1,079,278.75, 1,618,635.93 and 320,915.98 is: 481,290.06
Step by Step Solution
- Step 1: Write the proportion equation
1,079,278.75 : 1,618,635.93 = 320,915.98 : x - Step 2: Convert to fraction form
1,079,278.75/1,618,635.93 = 320,915.98/x - Step 3: Cross multiply
1,079,278.75x = 1,618,635.93 × 320,915.98 - Step 4: Simplify right side
1,079,278.75x = 519,446,135,739.16 - Step 5: Solve for x
x = 519,446,135,739.16/1,079,278.75 - Step 6: Final answer
x = 481,290.06
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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.