Finding the Fourth Proportional to 2,617,644.31, 3,926,352.22 and 820,486.75
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Solution
The fourth proportional to 2,617,644.31, 3,926,352.22 and 820,486.75 is: 1,230,694.32
Step by Step Solution
- Step 1: Write the proportion equation
2,617,644.31 : 3,926,352.22 = 820,486.75 : x - Step 2: Convert to fraction form
2,617,644.31/3,926,352.22 = 820,486.75/x - Step 3: Cross multiply
2,617,644.31x = 3,926,352.22 × 820,486.75 - Step 4: Simplify right side
2,617,644.31x = 3,221,519,972,343.09 - Step 5: Solve for x
x = 3,221,519,972,343.09/2,617,644.31 - Step 6: Final answer
x = 1,230,694.32
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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.