Finding the Fourth Proportional to 820,935.26, 1,132,879.92 and 458,365.28
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Solution
The fourth proportional to 820,935.26, 1,132,879.92 and 458,365.28 is: 632,538.09
Step by Step Solution
- Step 1: Write the proportion equation
820,935.26 : 1,132,879.92 = 458,365.28 : x - Step 2: Convert to fraction form
820,935.26/1,132,879.92 = 458,365.28/x - Step 3: Cross multiply
820,935.26x = 1,132,879.92 × 458,365.28 - Step 4: Simplify right side
820,935.26x = 519,272,821,737.18 - Step 5: Solve for x
x = 519,272,821,737.18/820,935.26 - Step 6: Final answer
x = 632,538.09
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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.