Finding the Fourth Proportional to 981,430.18, 1,472,380.56 and 475,399.74
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Solution
The fourth proportional to 981,430.18, 1,472,380.56 and 475,399.74 is: 713,213.58
Step by Step Solution
- Step 1: Write the proportion equation
981,430.18 : 1,472,380.56 = 475,399.74 : x - Step 2: Convert to fraction form
981,430.18/1,472,380.56 = 475,399.74/x - Step 3: Cross multiply
981,430.18x = 1,472,380.56 × 475,399.74 - Step 4: Simplify right side
981,430.18x = 699,969,335,405.06 - Step 5: Solve for x
x = 699,969,335,405.06/981,430.18 - Step 6: Final answer
x = 713,213.58
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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.