Finding the Fourth Proportional to 407,593.80, 611,390.70 and 328,861.80
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Solution
The fourth proportional to 407,593.80, 611,390.70 and 328,861.80 is: 493,292.70
Step by Step Solution
- Step 1: Write the proportion equation
407,593.80 : 611,390.70 = 328,861.80 : x - Step 2: Convert to fraction form
407,593.80/611,390.70 = 328,861.80/x - Step 3: Cross multiply
407,593.80x = 611,390.70 × 328,861.80 - Step 4: Simplify right side
407,593.80x = 201,063,046,105.26 - Step 5: Solve for x
x = 201,063,046,105.26/407,593.80 - Step 6: Final answer
x = 493,292.70
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1.5x scale
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.