Finding the Fourth Proportional to 786,187.92, 1,084,968.36 and 446,713.68
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Solution
The fourth proportional to 786,187.92, 1,084,968.36 and 446,713.68 is: 616,481.37
Step by Step Solution
- Step 1: Write the proportion equation
786,187.92 : 1,084,968.36 = 446,713.68 : x - Step 2: Convert to fraction form
786,187.92/1,084,968.36 = 446,713.68/x - Step 3: Cross multiply
786,187.92x = 1,084,968.36 × 446,713.68 - Step 4: Simplify right side
786,187.92x = 484,670,208,779.17 - Step 5: Solve for x
x = 484,670,208,779.17/786,187.92 - Step 6: Final answer
x = 616,481.37
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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.