Finding the Fourth Proportional to 726,413.46, 1,089,625.65 and 253,098.06
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Solution
The fourth proportional to 726,413.46, 1,089,625.65 and 253,098.06 is: 379,648.99
Step by Step Solution
- Step 1: Write the proportion equation
726,413.46 : 1,089,625.65 = 253,098.06 : x - Step 2: Convert to fraction form
726,413.46/1,089,625.65 = 253,098.06/x - Step 3: Cross multiply
726,413.46x = 1,089,625.65 × 253,098.06 - Step 4: Simplify right side
726,413.46x = 275,782,138,141.24 - Step 5: Solve for x
x = 275,782,138,141.24/726,413.46 - Step 6: Final answer
x = 379,648.99
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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.