Finding the Fourth Proportional to 981,617.09, 1,472,382.79 and 307,683
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Solution
The fourth proportional to 981,617.09, 1,472,382.79 and 307,683 is: 461,511.07
Step by Step Solution
- Step 1: Write the proportion equation
981,617.09 : 1,472,382.79 = 307,683 : x - Step 2: Convert to fraction form
981,617.09/1,472,382.79 = 307,683/x - Step 3: Cross multiply
981,617.09x = 1,472,382.79 × 307,683 - Step 4: Simplify right side
981,617.09x = 453,027,153,206.36 - Step 5: Solve for x
x = 453,027,153,206.36/981,617.09 - Step 6: Final answer
x = 461,511.07
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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.