Finding the Fourth Proportional to 3,278,434.80, 4,920,762.60 and 2,018,722.80
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Solution
The fourth proportional to 3,278,434.80, 4,920,762.60 and 2,018,722.80 is: 3,029,999.45
Step by Step Solution
- Step 1: Write the proportion equation
3,278,434.80 : 4,920,762.60 = 2,018,722.80 : x - Step 2: Convert to fraction form
3,278,434.80/4,920,762.60 = 2,018,722.80/x - Step 3: Cross multiply
3,278,434.80x = 4,920,762.60 × 2,018,722.80 - Step 4: Simplify right side
3,278,434.80x = 9,933,655,654,007.28 - Step 5: Solve for x
x = 9,933,655,654,007.28/3,278,434.80 - Step 6: Final answer
x = 3,029,999.45
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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.