Finding the Fourth Proportional to 745,225.75, 1,028,413.97 and 405,696.43
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Solution
The fourth proportional to 745,225.75, 1,028,413.97 and 405,696.43 is: 559,862.40
Step by Step Solution
- Step 1: Write the proportion equation
745,225.75 : 1,028,413.97 = 405,696.43 : x - Step 2: Convert to fraction form
745,225.75/1,028,413.97 = 405,696.43/x - Step 3: Cross multiply
745,225.75x = 1,028,413.97 × 405,696.43 - Step 4: Simplify right side
745,225.75x = 417,223,876,191.13 - Step 5: Solve for x
x = 417,223,876,191.13/745,225.75 - Step 6: Final answer
x = 559,862.40
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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.