Finding the Fourth Proportional to 859,819.29, 1,289,734.43 and 252,605.12
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Solution
The fourth proportional to 859,819.29, 1,289,734.43 and 252,605.12 is: 378,909.29
Step by Step Solution
- Step 1: Write the proportion equation
859,819.29 : 1,289,734.43 = 252,605.12 : x - Step 2: Convert to fraction form
859,819.29/1,289,734.43 = 252,605.12/x - Step 3: Cross multiply
859,819.29x = 1,289,734.43 × 252,605.12 - Step 4: Simplify right side
859,819.29x = 325,793,516,918.19 - Step 5: Solve for x
x = 325,793,516,918.19/859,819.29 - Step 6: Final answer
x = 378,909.29
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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.