Finding the Fourth Proportional to 1,431,583.74, 1,975,623.26 and 787,020.17
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Solution
The fourth proportional to 1,431,583.74, 1,975,623.26 and 787,020.17 is: 1,086,108.55
Step by Step Solution
- Step 1: Write the proportion equation
1,431,583.74 : 1,975,623.26 = 787,020.17 : x - Step 2: Convert to fraction form
1,431,583.74/1,975,623.26 = 787,020.17/x - Step 3: Cross multiply
1,431,583.74x = 1,975,623.26 × 787,020.17 - Step 4: Simplify right side
1,431,583.74x = 1,554,855,340,127.94 - Step 5: Solve for x
x = 1,554,855,340,127.94/1,431,583.74 - Step 6: Final answer
x = 1,086,108.55
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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.