Finding the Fourth Proportional to 1,278,651.70, 1,764,514.32 and 697,878.99
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Solution
The fourth proportional to 1,278,651.70, 1,764,514.32 and 697,878.99 is: 963,059.34
Step by Step Solution
- Step 1: Write the proportion equation
1,278,651.70 : 1,764,514.32 = 697,878.99 : x - Step 2: Convert to fraction form
1,278,651.70/1,764,514.32 = 697,878.99/x - Step 3: Cross multiply
1,278,651.70x = 1,764,514.32 × 697,878.99 - Step 4: Simplify right side
1,278,651.70x = 1,231,417,468,865.09 - Step 5: Solve for x
x = 1,231,417,468,865.09/1,278,651.70 - Step 6: Final answer
x = 963,059.34
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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.