Finding the Fourth Proportional to 1,631,910.80, 2,251,668.84 and 987,314.96
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Solution
The fourth proportional to 1,631,910.80, 2,251,668.84 and 987,314.96 is: 1,362,271.96
Step by Step Solution
- Step 1: Write the proportion equation
1,631,910.80 : 2,251,668.84 = 987,314.96 : x - Step 2: Convert to fraction form
1,631,910.80/2,251,668.84 = 987,314.96/x - Step 3: Cross multiply
1,631,910.80x = 2,251,668.84 × 987,314.96 - Step 4: Simplify right side
1,631,910.80x = 2,223,106,330,697.85 - Step 5: Solve for x
x = 2,223,106,330,697.85/1,631,910.80 - Step 6: Final answer
x = 1,362,271.96
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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.