Finding the Fourth Proportional to 456,413.09, 629,801.60 and 252,431.60
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Solution
The fourth proportional to 456,413.09, 629,801.60 and 252,431.60 is: 348,328.80
Step by Step Solution
- Step 1: Write the proportion equation
456,413.09 : 629,801.60 = 252,431.60 : x - Step 2: Convert to fraction form
456,413.09/629,801.60 = 252,431.60/x - Step 3: Cross multiply
456,413.09x = 629,801.60 × 252,431.60 - Step 4: Simplify right side
456,413.09x = 158,981,824,308.40 - Step 5: Solve for x
x = 158,981,824,308.40/456,413.09 - Step 6: Final answer
x = 348,328.80
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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.