Finding the Fourth Proportional to 1,278,934.80, 1,764,930.36 and 705,974.97
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Solution
The fourth proportional to 1,278,934.80, 1,764,930.36 and 705,974.97 is: 974,245.64
Step by Step Solution
- Step 1: Write the proportion equation
1,278,934.80 : 1,764,930.36 = 705,974.97 : x - Step 2: Convert to fraction form
1,278,934.80/1,764,930.36 = 705,974.97/x - Step 3: Cross multiply
1,278,934.80x = 1,764,930.36 × 705,974.97 - Step 4: Simplify right side
1,278,934.80x = 1,245,996,657,953.09 - Step 5: Solve for x
x = 1,245,996,657,953.09/1,278,934.80 - Step 6: Final answer
x = 974,245.64
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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.