Finding the Fourth Proportional to 1,278,713.57, 1,764,621.09 and 705,749.63
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Solution
The fourth proportional to 1,278,713.57, 1,764,621.09 and 705,749.63 is: 973,932.48
Step by Step Solution
- Step 1: Write the proportion equation
1,278,713.57 : 1,764,621.09 = 705,749.63 : x - Step 2: Convert to fraction form
1,278,713.57/1,764,621.09 = 705,749.63/x - Step 3: Cross multiply
1,278,713.57x = 1,764,621.09 × 705,749.63 - Step 4: Simplify right side
1,278,713.57x = 1,245,380,672,534.59 - Step 5: Solve for x
x = 1,245,380,672,534.59/1,278,713.57 - Step 6: Final answer
x = 973,932.48
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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.