Finding the Fourth Proportional to 1,121,991.75, 1,548,460.67 and 669,282.75
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Solution
The fourth proportional to 1,121,991.75, 1,548,460.67 and 669,282.75 is: 923,677.03
Step by Step Solution
- Step 1: Write the proportion equation
1,121,991.75 : 1,548,460.67 = 669,282.75 : x - Step 2: Convert to fraction form
1,121,991.75/1,548,460.67 = 669,282.75/x - Step 3: Cross multiply
1,121,991.75x = 1,548,460.67 × 669,282.75 - Step 4: Simplify right side
1,121,991.75x = 1,036,358,012,138.03 - Step 5: Solve for x
x = 1,036,358,012,138.03/1,121,991.75 - Step 6: Final answer
x = 923,677.03
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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.