Finding the Fourth Proportional to 1,296,249.80, 1,944,374.70 and 981,321.80
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Solution
The fourth proportional to 1,296,249.80, 1,944,374.70 and 981,321.80 is: 1,471,982.70
Step by Step Solution
- Step 1: Write the proportion equation
1,296,249.80 : 1,944,374.70 = 981,321.80 : x - Step 2: Convert to fraction form
1,296,249.80/1,944,374.70 = 981,321.80/x - Step 3: Cross multiply
1,296,249.80x = 1,944,374.70 × 981,321.80 - Step 4: Simplify right side
1,296,249.80x = 1,908,057,280,478.46 - Step 5: Solve for x
x = 1,908,057,280,478.46/1,296,249.80 - Step 6: Final answer
x = 1,471,982.70
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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.