Finding the Fourth Proportional to 1,431,585.24, 1,975,625.33 and 787,021.67
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Solution
The fourth proportional to 1,431,585.24, 1,975,625.33 and 787,021.67 is: 1,086,110.63
Step by Step Solution
- Step 1: Write the proportion equation
1,431,585.24 : 1,975,625.33 = 787,021.67 : x - Step 2: Convert to fraction form
1,431,585.24/1,975,625.33 = 787,021.67/x - Step 3: Cross multiply
1,431,585.24x = 1,975,625.33 × 787,021.67 - Step 4: Simplify right side
1,431,585.24x = 1,554,859,946,510.90 - Step 5: Solve for x
x = 1,554,859,946,510.90/1,431,585.24 - Step 6: Final answer
x = 1,086,110.63
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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.