Finding the Fourth Proportional to 3,228,282.98, 4,455,231.99 and 1,777,978.03
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Solution
The fourth proportional to 3,228,282.98, 4,455,231.99 and 1,777,978.03 is: 2,453,720.64
Step by Step Solution
- Step 1: Write the proportion equation
3,228,282.98 : 4,455,231.99 = 1,777,978.03 : x - Step 2: Convert to fraction form
3,228,282.98/4,455,231.99 = 1,777,978.03/x - Step 3: Cross multiply
3,228,282.98x = 4,455,231.99 × 1,777,978.03 - Step 4: Simplify right side
3,228,282.98x = 7,921,304,592,321.81 - Step 5: Solve for x
x = 7,921,304,592,321.81/3,228,282.98 - Step 6: Final answer
x = 2,453,720.64
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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.