Finding the Fourth Proportional to 1,578,509.97, 2,367,028.81 and 820,147.56
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Solution
The fourth proportional to 1,578,509.97, 2,367,028.81 and 820,147.56 is: 1,229,838.86
Step by Step Solution
- Step 1: Write the proportion equation
1,578,509.97 : 2,367,028.81 = 820,147.56 : x - Step 2: Convert to fraction form
1,578,509.97/2,367,028.81 = 820,147.56/x - Step 3: Cross multiply
1,578,509.97x = 2,367,028.81 × 820,147.56 - Step 4: Simplify right side
1,578,509.97x = 1,941,312,902,971.20 - Step 5: Solve for x
x = 1,941,312,902,971.20/1,578,509.97 - Step 6: Final answer
x = 1,229,838.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.