Finding the Fourth Proportional to 981,708.18, 1,351,673.49 and 834,221.95
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Solution
The fourth proportional to 981,708.18, 1,351,673.49 and 834,221.95 is: 1,148,605.78
Step by Step Solution
- Step 1: Write the proportion equation
981,708.18 : 1,351,673.49 = 834,221.95 : x - Step 2: Convert to fraction form
981,708.18/1,351,673.49 = 834,221.95/x - Step 3: Cross multiply
981,708.18x = 1,351,673.49 × 834,221.95 - Step 4: Simplify right side
981,708.18x = 1,127,595,694,591.11 - Step 5: Solve for x
x = 1,127,595,694,591.11/981,708.18 - Step 6: Final answer
x = 1,148,605.78
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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.