Finding the Fourth Proportional to 1,284,369.75, 1,772,430.26 and 711,447.03
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Solution
The fourth proportional to 1,284,369.75, 1,772,430.26 and 711,447.03 is: 981,796.90
Step by Step Solution
- Step 1: Write the proportion equation
1,284,369.75 : 1,772,430.26 = 711,447.03 : x - Step 2: Convert to fraction form
1,284,369.75/1,772,430.26 = 711,447.03/x - Step 3: Cross multiply
1,284,369.75x = 1,772,430.26 × 711,447.03 - Step 4: Simplify right side
1,284,369.75x = 1,260,990,240,801.89 - Step 5: Solve for x
x = 1,260,990,240,801.89/1,284,369.75 - Step 6: Final answer
x = 981,796.90
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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.