Finding the Fourth Proportional to 403,990.08, 558,514.08 and 303,213.12
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Solution
The fourth proportional to 403,990.08, 558,514.08 and 303,213.12 is: 419,190.48
Step by Step Solution
- Step 1: Write the proportion equation
403,990.08 : 558,514.08 = 303,213.12 : x - Step 2: Convert to fraction form
403,990.08/558,514.08 = 303,213.12/x - Step 3: Cross multiply
403,990.08x = 558,514.08 × 303,213.12 - Step 4: Simplify right side
403,990.08x = 169,348,796,760.73 - Step 5: Solve for x
x = 169,348,796,760.73/403,990.08 - Step 6: Final answer
x = 419,190.48
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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.