Finding the Fourth Proportional to 981,439.76, 1,472,157.84 and 307,572.72
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Solution
The fourth proportional to 981,439.76, 1,472,157.84 and 307,572.72 is: 461,358.52
Step by Step Solution
- Step 1: Write the proportion equation
981,439.76 : 1,472,157.84 = 307,572.72 : x - Step 2: Convert to fraction form
981,439.76/1,472,157.84 = 307,572.72/x - Step 3: Cross multiply
981,439.76x = 1,472,157.84 × 307,572.72 - Step 4: Simplify right side
981,439.76x = 452,795,591,118.13 - Step 5: Solve for x
x = 452,795,591,118.13/981,439.76 - Step 6: Final answer
x = 461,358.52
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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.