Finding the Fourth Proportional to 2,138,304.80, 3,201,552.30 and 1,665,912.80
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Solution
The fourth proportional to 2,138,304.80, 3,201,552.30 and 1,665,912.80 is: 2,494,268.80
Step by Step Solution
- Step 1: Write the proportion equation
2,138,304.80 : 3,201,552.30 = 1,665,912.80 : x - Step 2: Convert to fraction form
2,138,304.80/3,201,552.30 = 1,665,912.80/x - Step 3: Cross multiply
2,138,304.80x = 3,201,552.30 × 1,665,912.80 - Step 4: Simplify right side
2,138,304.80x = 5,333,506,956,439.44 - Step 5: Solve for x
x = 5,333,506,956,439.44/2,138,304.80 - Step 6: Final answer
x = 2,494,268.80
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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.