Finding the Fourth Proportional to 679,520.09, 937,739.60 and 373,627.74
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Solution
The fourth proportional to 679,520.09, 937,739.60 and 373,627.74 is: 515,607.32
Step by Step Solution
- Step 1: Write the proportion equation
679,520.09 : 937,739.60 = 373,627.74 : x - Step 2: Convert to fraction form
679,520.09/937,739.60 = 373,627.74/x - Step 3: Cross multiply
679,520.09x = 937,739.60 × 373,627.74 - Step 4: Simplify right side
679,520.09x = 350,365,530,505.99 - Step 5: Solve for x
x = 350,365,530,505.99/679,520.09 - Step 6: Final answer
x = 515,607.32
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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.