Finding the Fourth Proportional to 1,431,515.67, 1,975,452.62 and 786,936.03
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Solution
The fourth proportional to 1,431,515.67, 1,975,452.62 and 786,936.03 is: 1,085,950.28
Step by Step Solution
- Step 1: Write the proportion equation
1,431,515.67 : 1,975,452.62 = 786,936.03 : x - Step 2: Convert to fraction form
1,431,515.67/1,975,452.62 = 786,936.03/x - Step 3: Cross multiply
1,431,515.67x = 1,975,452.62 × 786,936.03 - Step 4: Simplify right side
1,431,515.67x = 1,554,554,838,301.22 - Step 5: Solve for x
x = 1,554,554,838,301.22/1,431,515.67 - Step 6: Final answer
x = 1,085,950.28
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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.