Finding the Fourth Proportional to 654,135.80, 981,203.70 and 654,135.80
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Solution
The fourth proportional to 654,135.80, 981,203.70 and 654,135.80 is: 981,203.70
Step by Step Solution
- Step 1: Write the proportion equation
654,135.80 : 981,203.70 = 654,135.80 : x - Step 2: Convert to fraction form
654,135.80/981,203.70 = 654,135.80/x - Step 3: Cross multiply
654,135.80x = 981,203.70 × 654,135.80 - Step 4: Simplify right side
654,135.80x = 641,840,467,262.46 - Step 5: Solve for x
x = 641,840,467,262.46/654,135.80 - Step 6: Final answer
x = 981,203.70
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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.