Finding the Fourth Proportional to 1,278,352.00, 1,917,790.43 and 379,713.70
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Solution
The fourth proportional to 1,278,352.00, 1,917,790.43 and 379,713.70 is: 569,648.49
Step by Step Solution
- Step 1: Write the proportion equation
1,278,352.00 : 1,917,790.43 = 379,713.70 : x - Step 2: Convert to fraction form
1,278,352.00/1,917,790.43 = 379,713.70/x - Step 3: Cross multiply
1,278,352.00x = 1,917,790.43 × 379,713.70 - Step 4: Simplify right side
1,278,352.00x = 728,211,288,512.37 - Step 5: Solve for x
x = 728,211,288,512.37/1,278,352.00 - Step 6: Final answer
x = 569,648.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.