Finding the Fourth Proportional to 981,663.21, 1,472,451.97 and 307,729.13
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Solution
The fourth proportional to 981,663.21, 1,472,451.97 and 307,729.13 is: 461,580.26
Step by Step Solution
- Step 1: Write the proportion equation
981,663.21 : 1,472,451.97 = 307,729.13 : x - Step 2: Convert to fraction form
981,663.21/1,472,451.97 = 307,729.13/x - Step 3: Cross multiply
981,663.21x = 1,472,451.97 × 307,729.13 - Step 4: Simplify right side
981,663.21x = 453,116,363,694.89 - Step 5: Solve for x
x = 453,116,363,694.89/981,663.21 - Step 6: Final answer
x = 461,580.26
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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.