Finding the Fourth Proportional to 3,161,403.18, 4,742,116.99 and 765,243.90
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Solution
The fourth proportional to 3,161,403.18, 4,742,116.99 and 765,243.90 is: 1,147,868.81
Step by Step Solution
- Step 1: Write the proportion equation
3,161,403.18 : 4,742,116.99 = 765,243.90 : x - Step 2: Convert to fraction form
3,161,403.18/4,742,116.99 = 765,243.90/x - Step 3: Cross multiply
3,161,403.18x = 4,742,116.99 × 765,243.90 - Step 4: Simplify right side
3,161,403.18x = 3,628,876,097,770.75 - Step 5: Solve for x
x = 3,628,876,097,770.75/3,161,403.18 - Step 6: Final answer
x = 1,147,868.81
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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.