Finding the Fourth Proportional to 1,208,936.28, 1,668,266.17 and 664,984.26
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Solution
The fourth proportional to 1,208,936.28, 1,668,266.17 and 664,984.26 is: 917,642.03
Step by Step Solution
- Step 1: Write the proportion equation
1,208,936.28 : 1,668,266.17 = 664,984.26 : x - Step 2: Convert to fraction form
1,208,936.28/1,668,266.17 = 664,984.26/x - Step 3: Cross multiply
1,208,936.28x = 1,668,266.17 × 664,984.26 - Step 4: Simplify right side
1,208,936.28x = 1,109,370,744,540.48 - Step 5: Solve for x
x = 1,109,370,744,540.48/1,208,936.28 - Step 6: Final answer
x = 917,642.03
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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.