Finding the Fourth Proportional to 679,626.63, 937,911.77 and 373,728.09
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Solution
The fourth proportional to 679,626.63, 937,911.77 and 373,728.09 is: 515,759.62
Step by Step Solution
- Step 1: Write the proportion equation
679,626.63 : 937,911.77 = 373,728.09 : x - Step 2: Convert to fraction form
679,626.63/937,911.77 = 373,728.09/x - Step 3: Cross multiply
679,626.63x = 937,911.77 × 373,728.09 - Step 4: Simplify right side
679,626.63x = 350,523,971,578.68 - Step 5: Solve for x
x = 350,523,971,578.68/679,626.63 - Step 6: Final answer
x = 515,759.62
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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.