Finding the Fourth Proportional to 1,403,361.18, 2,105,357.85 and 443,874.87
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Solution
The fourth proportional to 1,403,361.18, 2,105,357.85 and 443,874.87 is: 665,912.28
Step by Step Solution
- Step 1: Write the proportion equation
1,403,361.18 : 2,105,357.85 = 443,874.87 : x - Step 2: Convert to fraction form
1,403,361.18/2,105,357.85 = 443,874.87/x - Step 3: Cross multiply
1,403,361.18x = 2,105,357.85 × 443,874.87 - Step 4: Simplify right side
1,403,361.18x = 934,515,441,972.23 - Step 5: Solve for x
x = 934,515,441,972.23/1,403,361.18 - Step 6: Final answer
x = 665,912.28
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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.