Finding the Fourth Proportional to 981,572.70, 1,472,377.49 and 307,639.08
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Solution
The fourth proportional to 981,572.70, 1,472,377.49 and 307,639.08 is: 461,464.40
Step by Step Solution
- Step 1: Write the proportion equation
981,572.70 : 1,472,377.49 = 307,639.08 : x - Step 2: Convert to fraction form
981,572.70/1,472,377.49 = 307,639.08/x - Step 3: Cross multiply
981,572.70x = 1,472,377.49 × 307,639.08 - Step 4: Simplify right side
981,572.70x = 452,960,856,436.31 - Step 5: Solve for x
x = 452,960,856,436.31/981,572.70 - Step 6: Final answer
x = 461,464.40
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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.