Finding the Fourth Proportional to 2,220,957.20, 3,064,917.12 and 1,202,361.68
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Solution
The fourth proportional to 2,220,957.20, 3,064,917.12 and 1,202,361.68 is: 1,659,257.05
Step by Step Solution
- Step 1: Write the proportion equation
2,220,957.20 : 3,064,917.12 = 1,202,361.68 : x - Step 2: Convert to fraction form
2,220,957.20/3,064,917.12 = 1,202,361.68/x - Step 3: Cross multiply
2,220,957.20x = 3,064,917.12 × 1,202,361.68 - Step 4: Simplify right side
2,220,957.20x = 3,685,138,897,463.96 - Step 5: Solve for x
x = 3,685,138,897,463.96/2,220,957.20 - Step 6: Final answer
x = 1,659,257.05
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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.