Finding the Fourth Proportional to 3,622,918.44, 4,999,678.80 and 1,991,476.65
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Solution
The fourth proportional to 3,622,918.44, 4,999,678.80 and 1,991,476.65 is: 2,748,266.01
Step by Step Solution
- Step 1: Write the proportion equation
3,622,918.44 : 4,999,678.80 = 1,991,476.65 : x - Step 2: Convert to fraction form
3,622,918.44/4,999,678.80 = 1,991,476.65/x - Step 3: Cross multiply
3,622,918.44x = 4,999,678.80 × 1,991,476.65 - Step 4: Simplify right side
3,622,918.44x = 9,956,743,587,700.02 - Step 5: Solve for x
x = 9,956,743,587,700.02/3,622,918.44 - Step 6: Final answer
x = 2,748,266.01
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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.