Finding the Fourth Proportional to 1,287,790.62, 1,777,157.91 and 804,635.94
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Solution
The fourth proportional to 1,287,790.62, 1,777,157.91 and 804,635.94 is: 1,110,401.88
Step by Step Solution
- Step 1: Write the proportion equation
1,287,790.62 : 1,777,157.91 = 804,635.94 : x - Step 2: Convert to fraction form
1,287,790.62/1,777,157.91 = 804,635.94/x - Step 3: Cross multiply
1,287,790.62x = 1,777,157.91 × 804,635.94 - Step 4: Simplify right side
1,287,790.62x = 1,429,965,125,441.29 - Step 5: Solve for x
x = 1,429,965,125,441.29/1,287,790.62 - Step 6: Final answer
x = 1,110,401.88
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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.