Finding the Fourth Proportional to 1,350,486.12, 1,863,463.48 and 777,415.12
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Solution
The fourth proportional to 1,350,486.12, 1,863,463.48 and 777,415.12 is: 1,072,713.49
Step by Step Solution
- Step 1: Write the proportion equation
1,350,486.12 : 1,863,463.48 = 777,415.12 : x - Step 2: Convert to fraction form
1,350,486.12/1,863,463.48 = 777,415.12/x - Step 3: Cross multiply
1,350,486.12x = 1,863,463.48 × 777,415.12 - Step 4: Simplify right side
1,350,486.12x = 1,448,684,684,919.82 - Step 5: Solve for x
x = 1,448,684,684,919.82/1,350,486.12 - Step 6: Final answer
x = 1,072,713.49
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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.