Finding the Fourth Proportional to 1,087,790.87, 1,631,224.97 and 518,513.40
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Solution
The fourth proportional to 1,087,790.87, 1,631,224.97 and 518,513.40 is: 777,550.20
Step by Step Solution
- Step 1: Write the proportion equation
1,087,790.87 : 1,631,224.97 = 518,513.40 : x - Step 2: Convert to fraction form
1,087,790.87/1,631,224.97 = 518,513.40/x - Step 3: Cross multiply
1,087,790.87x = 1,631,224.97 × 518,513.40 - Step 4: Simplify right side
1,087,790.87x = 845,812,002,767.03 - Step 5: Solve for x
x = 845,812,002,767.03/1,087,790.87 - Step 6: Final answer
x = 777,550.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.