Finding the Fourth Proportional to 1,902,441.69, 2,625,299.87 and 1,042,983.09
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Solution
The fourth proportional to 1,902,441.69, 2,625,299.87 and 1,042,983.09 is: 1,439,278.47
Step by Step Solution
- Step 1: Write the proportion equation
1,902,441.69 : 2,625,299.87 = 1,042,983.09 : x - Step 2: Convert to fraction form
1,902,441.69/2,625,299.87 = 1,042,983.09/x - Step 3: Cross multiply
1,902,441.69x = 2,625,299.87 × 1,042,983.09 - Step 4: Simplify right side
1,902,441.69x = 2,738,143,365,374.28 - Step 5: Solve for x
x = 2,738,143,365,374.28/1,902,441.69 - Step 6: Final answer
x = 1,439,278.47
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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.