Finding the Fourth Proportional to 849,841.78, 1,274,765.79 and 317,357.14
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Solution
The fourth proportional to 849,841.78, 1,274,765.79 and 317,357.14 is: 476,036.88
Step by Step Solution
- Step 1: Write the proportion equation
849,841.78 : 1,274,765.79 = 317,357.14 : x - Step 2: Convert to fraction form
849,841.78/1,274,765.79 = 317,357.14/x - Step 3: Cross multiply
849,841.78x = 1,274,765.79 × 317,357.14 - Step 4: Simplify right side
849,841.78x = 404,556,025,284.24 - Step 5: Solve for x
x = 404,556,025,284.24/849,841.78 - Step 6: Final answer
x = 476,036.88
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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.