Finding the Fourth Proportional to 1,018,245, 1,405,178.10 and 565,578.12
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Solution
The fourth proportional to 1,018,245, 1,405,178.10 and 565,578.12 is: 780,497.81
Step by Step Solution
- Step 1: Write the proportion equation
1,018,245 : 1,405,178.10 = 565,578.12 : x - Step 2: Convert to fraction form
1,018,245/1,405,178.10 = 565,578.12/x - Step 3: Cross multiply
1,018,245x = 1,405,178.10 × 565,578.12 - Step 4: Simplify right side
1,018,245x = 794,737,988,063.17 - Step 5: Solve for x
x = 794,737,988,063.17/1,018,245 - Step 6: Final answer
x = 780,497.81
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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.