Finding the Fourth Proportional to 1,279,048.73, 1,765,119.33 and 727,734.11
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Solution
The fourth proportional to 1,279,048.73, 1,765,119.33 and 727,734.11 is: 1,004,291.32
Step by Step Solution
- Step 1: Write the proportion equation
1,279,048.73 : 1,765,119.33 = 727,734.11 : x - Step 2: Convert to fraction form
1,279,048.73/1,765,119.33 = 727,734.11/x - Step 3: Cross multiply
1,279,048.73x = 1,765,119.33 × 727,734.11 - Step 4: Simplify right side
1,279,048.73x = 1,284,537,535,835.75 - Step 5: Solve for x
x = 1,284,537,535,835.75/1,279,048.73 - Step 6: Final answer
x = 1,004,291.32
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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.