Finding the Fourth Proportional to 1,642,188.74, 2,267,286.80 and 1,469,808.18
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Solution
The fourth proportional to 1,642,188.74, 2,267,286.80 and 1,469,808.18 is: 2,029,289.69
Step by Step Solution
- Step 1: Write the proportion equation
1,642,188.74 : 2,267,286.80 = 1,469,808.18 : x - Step 2: Convert to fraction form
1,642,188.74/2,267,286.80 = 1,469,808.18/x - Step 3: Cross multiply
1,642,188.74x = 2,267,286.80 × 1,469,808.18 - Step 4: Simplify right side
1,642,188.74x = 3,332,476,685,046.02 - Step 5: Solve for x
x = 3,332,476,685,046.02/1,642,188.74 - Step 6: Final answer
x = 2,029,289.69
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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.