Finding the Fourth Proportional to 642,371.49, 886,449.14 and 370,450.84
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Solution
The fourth proportional to 642,371.49, 886,449.14 and 370,450.84 is: 511,208.60
Step by Step Solution
- Step 1: Write the proportion equation
642,371.49 : 886,449.14 = 370,450.84 : x - Step 2: Convert to fraction form
642,371.49/886,449.14 = 370,450.84/x - Step 3: Cross multiply
642,371.49x = 886,449.14 × 370,450.84 - Step 4: Simplify right side
642,371.49x = 328,385,828,530.28 - Step 5: Solve for x
x = 328,385,828,530.28/642,371.49 - Step 6: Final answer
x = 511,208.60
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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.