Finding the Fourth Proportional to 1,431,585.46, 1,975,625.67 and 787,021.90
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Solution
The fourth proportional to 1,431,585.46, 1,975,625.67 and 787,021.90 is: 1,086,110.97
Step by Step Solution
- Step 1: Write the proportion equation
1,431,585.46 : 1,975,625.67 = 787,021.90 : x - Step 2: Convert to fraction form
1,431,585.46/1,975,625.67 = 787,021.90/x - Step 3: Cross multiply
1,431,585.46x = 1,975,625.67 × 787,021.90 - Step 4: Simplify right side
1,431,585.46x = 1,554,860,668,492.17 - Step 5: Solve for x
x = 1,554,860,668,492.17/1,431,585.46 - Step 6: Final answer
x = 1,086,110.97
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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.