Finding the Fourth Proportional to 1,286,427.36, 1,775,378.70 and 713,652
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Solution
The fourth proportional to 1,286,427.36, 1,775,378.70 and 713,652 is: 984,900.20
Step by Step Solution
- Step 1: Write the proportion equation
1,286,427.36 : 1,775,378.70 = 713,652 : x - Step 2: Convert to fraction form
1,286,427.36/1,775,378.70 = 713,652/x - Step 3: Cross multiply
1,286,427.36x = 1,775,378.70 × 713,652 - Step 4: Simplify right side
1,286,427.36x = 1,267,002,560,012.40 - Step 5: Solve for x
x = 1,267,002,560,012.40/1,286,427.36 - Step 6: Final answer
x = 984,900.20
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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.