Finding the Fourth Proportional to 4,160,486.80, 6,240,730.20 and 1,320,821.20
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Solution
The fourth proportional to 4,160,486.80, 6,240,730.20 and 1,320,821.20 is: 1,981,231.80
Step by Step Solution
- Step 1: Write the proportion equation
4,160,486.80 : 6,240,730.20 = 1,320,821.20 : x - Step 2: Convert to fraction form
4,160,486.80/6,240,730.20 = 1,320,821.20/x - Step 3: Cross multiply
4,160,486.80x = 6,240,730.20 × 1,320,821.20 - Step 4: Simplify right side
4,160,486.80x = 8,242,888,751,640.24 - Step 5: Solve for x
x = 8,242,888,751,640.24/4,160,486.80 - Step 6: Final answer
x = 1,981,231.80
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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.