Finding the Fourth Proportional to 407,520.86, 611,252.42 and 107,994.80
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Solution
The fourth proportional to 407,520.86, 611,252.42 and 107,994.80 is: 161,984.55
Step by Step Solution
- Step 1: Write the proportion equation
407,520.86 : 611,252.42 = 107,994.80 : x - Step 2: Convert to fraction form
407,520.86/611,252.42 = 107,994.80/x - Step 3: Cross multiply
407,520.86x = 611,252.42 × 107,994.80 - Step 4: Simplify right side
407,520.86x = 66,012,082,847.42 - Step 5: Solve for x
x = 66,012,082,847.42/407,520.86 - Step 6: Final answer
x = 161,984.55
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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.