Finding the Fourth Proportional to 1,631,449.87, 2,252,007.12 and 1,401,082.09
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Solution
The fourth proportional to 1,631,449.87, 2,252,007.12 and 1,401,082.09 is: 1,934,013.97
Step by Step Solution
- Step 1: Write the proportion equation
1,631,449.87 : 2,252,007.12 = 1,401,082.09 : x - Step 2: Convert to fraction form
1,631,449.87/2,252,007.12 = 1,401,082.09/x - Step 3: Cross multiply
1,631,449.87x = 2,252,007.12 × 1,401,082.09 - Step 4: Simplify right side
1,631,449.87x = 3,155,246,842,854.29 - Step 5: Solve for x
x = 3,155,246,842,854.29/1,631,449.87 - Step 6: Final answer
x = 1,934,013.97
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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.