Finding the Fourth Proportional to 1,318,659.75, 1,819,750.46 and 715,047.75
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Solution
The fourth proportional to 1,318,659.75, 1,819,750.46 and 715,047.75 is: 986,765.90
Step by Step Solution
- Step 1: Write the proportion equation
1,318,659.75 : 1,819,750.46 = 715,047.75 : x - Step 2: Convert to fraction form
1,318,659.75/1,819,750.46 = 715,047.75/x - Step 3: Cross multiply
1,318,659.75x = 1,819,750.46 × 715,047.75 - Step 4: Simplify right side
1,318,659.75x = 1,301,208,468,409.23 - Step 5: Solve for x
x = 1,301,208,468,409.23/1,318,659.75 - Step 6: Final answer
x = 986,765.90
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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.