Finding the Fourth Proportional to 1,143,378.99, 1,577,865.29 and 627,137.10
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Solution
The fourth proportional to 1,143,378.99, 1,577,865.29 and 627,137.10 is: 865,450.45
Step by Step Solution
- Step 1: Write the proportion equation
1,143,378.99 : 1,577,865.29 = 627,137.10 : x - Step 2: Convert to fraction form
1,143,378.99/1,577,865.29 = 627,137.10/x - Step 3: Cross multiply
1,143,378.99x = 1,577,865.29 × 627,137.10 - Step 4: Simplify right side
1,143,378.99x = 989,537,859,025.57 - Step 5: Solve for x
x = 989,537,859,025.57/1,143,378.99 - Step 6: Final answer
x = 865,450.45
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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.