Finding the Fourth Proportional to 726,157.58, 1,088,239.87 and 459,440.63
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Solution
The fourth proportional to 726,157.58, 1,088,239.87 and 459,440.63 is: 688,530.45
Step by Step Solution
- Step 1: Write the proportion equation
726,157.58 : 1,088,239.87 = 459,440.63 : x - Step 2: Convert to fraction form
726,157.58/1,088,239.87 = 459,440.63/x - Step 3: Cross multiply
726,157.58x = 1,088,239.87 × 459,440.63 - Step 4: Simplify right side
726,157.58x = 499,981,604,874.12 - Step 5: Solve for x
x = 499,981,604,874.12/726,157.58 - Step 6: Final answer
x = 688,530.45
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1.5x scale
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.