Finding the Fourth Proportional to 718,771.62, 1,077,241.44 and 381,973.62
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Solution
The fourth proportional to 718,771.62, 1,077,241.44 and 381,973.62 is: 572,473.65
Step by Step Solution
- Step 1: Write the proportion equation
718,771.62 : 1,077,241.44 = 381,973.62 : x - Step 2: Convert to fraction form
718,771.62/1,077,241.44 = 381,973.62/x - Step 3: Cross multiply
718,771.62x = 1,077,241.44 × 381,973.62 - Step 4: Simplify right side
718,771.62x = 411,477,812,450.81 - Step 5: Solve for x
x = 411,477,812,450.81/718,771.62 - Step 6: Final answer
x = 572,473.65
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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.