Finding the Fourth Proportional to 1,435,907.05, 1,981,515.21 and 782,549.87
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Solution
The fourth proportional to 1,435,907.05, 1,981,515.21 and 782,549.87 is: 1,079,898.92
Step by Step Solution
- Step 1: Write the proportion equation
1,435,907.05 : 1,981,515.21 = 782,549.87 : x - Step 2: Convert to fraction form
1,435,907.05/1,981,515.21 = 782,549.87/x - Step 3: Cross multiply
1,435,907.05x = 1,981,515.21 × 782,549.87 - Step 4: Simplify right side
1,435,907.05x = 1,550,634,476,581.26 - Step 5: Solve for x
x = 1,550,634,476,581.26/1,435,907.05 - Step 6: Final answer
x = 1,079,898.92
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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.