Finding the Fourth Proportional to 703,213.05, 970,414.05 and 412,819.99
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Solution
The fourth proportional to 703,213.05, 970,414.05 and 412,819.99 is: 569,679.87
Step by Step Solution
- Step 1: Write the proportion equation
703,213.05 : 970,414.05 = 412,819.99 : x - Step 2: Convert to fraction form
703,213.05/970,414.05 = 412,819.99/x - Step 3: Cross multiply
703,213.05x = 970,414.05 × 412,819.99 - Step 4: Simplify right side
703,213.05x = 400,606,317,538.90 - Step 5: Solve for x
x = 400,606,317,538.90/703,213.05 - Step 6: Final answer
x = 569,679.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.