Finding the Fourth Proportional to 786,134.09, 1,084,743.55 and 441,906.23
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Solution
The fourth proportional to 786,134.09, 1,084,743.55 and 441,906.23 is: 609,762.30
Step by Step Solution
- Step 1: Write the proportion equation
786,134.09 : 1,084,743.55 = 441,906.23 : x - Step 2: Convert to fraction form
786,134.09/1,084,743.55 = 441,906.23/x - Step 3: Cross multiply
786,134.09x = 1,084,743.55 × 441,906.23 - Step 4: Simplify right side
786,134.09x = 479,354,932,697.32 - Step 5: Solve for x
x = 479,354,932,697.32/786,134.09 - Step 6: Final answer
x = 609,762.30
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1.5x scale
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.