Finding the Fourth Proportional to 1,431,668.70, 1,975,685.07 and 787,083.24
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Solution
The fourth proportional to 1,431,668.70, 1,975,685.07 and 787,083.24 is: 1,086,165.12
Step by Step Solution
- Step 1: Write the proportion equation
1,431,668.70 : 1,975,685.07 = 787,083.24 : x - Step 2: Convert to fraction form
1,431,668.70/1,975,685.07 = 787,083.24/x - Step 3: Cross multiply
1,431,668.70x = 1,975,685.07 × 787,083.24 - Step 4: Simplify right side
1,431,668.70x = 1,555,028,606,115.23 - Step 5: Solve for x
x = 1,555,028,606,115.23/1,431,668.70 - Step 6: Final answer
x = 1,086,165.12
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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.