Finding the Fourth Proportional to 3,972,863.09, 5,959,349.31 and 1,132,975.55
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Solution
The fourth proportional to 3,972,863.09, 5,959,349.31 and 1,132,975.55 is: 1,699,478.92
Step by Step Solution
- Step 1: Write the proportion equation
3,972,863.09 : 5,959,349.31 = 1,132,975.55 : x - Step 2: Convert to fraction form
3,972,863.09/5,959,349.31 = 1,132,975.55/x - Step 3: Cross multiply
3,972,863.09x = 5,959,349.31 × 1,132,975.55 - Step 4: Simplify right side
3,972,863.09x = 6,751,797,062,139.37 - Step 5: Solve for x
x = 6,751,797,062,139.37/3,972,863.09 - Step 6: Final answer
x = 1,699,478.92
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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.