Finding the Fourth Proportional to 1,938,286.72, 2,904,229.68 and 1,126,391.68
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Solution
The fourth proportional to 1,938,286.72, 2,904,229.68 and 1,126,391.68 is: 1,687,727.68
Step by Step Solution
- Step 1: Write the proportion equation
1,938,286.72 : 2,904,229.68 = 1,126,391.68 : x - Step 2: Convert to fraction form
1,938,286.72/2,904,229.68 = 1,126,391.68/x - Step 3: Cross multiply
1,938,286.72x = 2,904,229.68 × 1,126,391.68 - Step 4: Simplify right side
1,938,286.72x = 3,271,300,148,361.06 - Step 5: Solve for x
x = 3,271,300,148,361.06/1,938,286.72 - Step 6: Final answer
x = 1,687,727.68
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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.