Finding the Fourth Proportional to 1,442,951.75, 1,991,242.68 and 789,575.07
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Solution
The fourth proportional to 1,442,951.75, 1,991,242.68 and 789,575.07 is: 1,089,596.78
Step by Step Solution
- Step 1: Write the proportion equation
1,442,951.75 : 1,991,242.68 = 789,575.07 : x - Step 2: Convert to fraction form
1,442,951.75/1,991,242.68 = 789,575.07/x - Step 3: Cross multiply
1,442,951.75x = 1,991,242.68 × 789,575.07 - Step 4: Simplify right side
1,442,951.75x = 1,572,235,582,954.24 - Step 5: Solve for x
x = 1,572,235,582,954.24/1,442,951.75 - Step 6: Final answer
x = 1,089,596.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.