Finding the Fourth Proportional to 1,926,496.75, 2,660,352.57 and 1,442,221.03
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Solution
The fourth proportional to 1,926,496.75, 2,660,352.57 and 1,442,221.03 is: 1,991,602.85
Step by Step Solution
- Step 1: Write the proportion equation
1,926,496.75 : 2,660,352.57 = 1,442,221.03 : x - Step 2: Convert to fraction form
1,926,496.75/2,660,352.57 = 1,442,221.03/x - Step 3: Cross multiply
1,926,496.75x = 2,660,352.57 × 1,442,221.03 - Step 4: Simplify right side
1,926,496.75x = 3,836,816,423,668.55 - Step 5: Solve for x
x = 3,836,816,423,668.55/1,926,496.75 - Step 6: Final answer
x = 1,991,602.85
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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.