Finding the Fourth Proportional to 3,619,668.71, 5,430,202.91 and 1,375,631.75
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Solution
The fourth proportional to 3,619,668.71, 5,430,202.91 and 1,375,631.75 is: 2,063,713.60
Step by Step Solution
- Step 1: Write the proportion equation
3,619,668.71 : 5,430,202.91 = 1,375,631.75 : x - Step 2: Convert to fraction form
3,619,668.71/5,430,202.91 = 1,375,631.75/x - Step 3: Cross multiply
3,619,668.71x = 5,430,202.91 × 1,375,631.75 - Step 4: Simplify right side
3,619,668.71x = 7,469,959,531,938.39 - Step 5: Solve for x
x = 7,469,959,531,938.39/3,619,668.71 - Step 6: Final answer
x = 2,063,713.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.