Finding the Fourth Proportional to 981,214.97, 1,472,391.07 and 412,551.23
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Solution
The fourth proportional to 981,214.97, 1,472,391.07 and 412,551.23 is: 619,065.91
Step by Step Solution
- Step 1: Write the proportion equation
981,214.97 : 1,472,391.07 = 412,551.23 : x - Step 2: Convert to fraction form
981,214.97/1,472,391.07 = 412,551.23/x - Step 3: Cross multiply
981,214.97x = 1,472,391.07 × 412,551.23 - Step 4: Simplify right side
981,214.97x = 607,436,738,576.18 - Step 5: Solve for x
x = 607,436,738,576.18/981,214.97 - Step 6: Final answer
x = 619,065.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.