Finding the Fourth Proportional to 3,686,138.28, 5,531,698.44 and 1,290,003.84
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Solution
The fourth proportional to 3,686,138.28, 5,531,698.44 and 1,290,003.84 is: 1,935,877.52
Step by Step Solution
- Step 1: Write the proportion equation
3,686,138.28 : 5,531,698.44 = 1,290,003.84 : x - Step 2: Convert to fraction form
3,686,138.28/5,531,698.44 = 1,290,003.84/x - Step 3: Cross multiply
3,686,138.28x = 5,531,698.44 × 1,290,003.84 - Step 4: Simplify right side
3,686,138.28x = 7,135,912,229,322.01 - Step 5: Solve for x
x = 7,135,912,229,322.01/3,686,138.28 - Step 6: Final answer
x = 1,935,877.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.