Finding the Fourth Proportional to 1,940,839.12, 2,678,368.94 and 1,125,526.87
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Solution
The fourth proportional to 1,940,839.12, 2,678,368.94 and 1,125,526.87 is: 1,553,233.43
Step by Step Solution
- Step 1: Write the proportion equation
1,940,839.12 : 2,678,368.94 = 1,125,526.87 : x - Step 2: Convert to fraction form
1,940,839.12/2,678,368.94 = 1,125,526.87/x - Step 3: Cross multiply
1,940,839.12x = 2,678,368.94 × 1,125,526.87 - Step 4: Simplify right side
1,940,839.12x = 3,014,576,205,861.31 - Step 5: Solve for x
x = 3,014,576,205,861.31/1,940,839.12 - Step 6: Final answer
x = 1,553,233.43
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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.