Finding the Fourth Proportional to 409,276.20, 613,914.30 and 393,529.80
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Solution
The fourth proportional to 409,276.20, 613,914.30 and 393,529.80 is: 590,294.70
Step by Step Solution
- Step 1: Write the proportion equation
409,276.20 : 613,914.30 = 393,529.80 : x - Step 2: Convert to fraction form
409,276.20/613,914.30 = 393,529.80/x - Step 3: Cross multiply
409,276.20x = 613,914.30 × 393,529.80 - Step 4: Simplify right side
409,276.20x = 241,593,571,696.14 - Step 5: Solve for x
x = 241,593,571,696.14/409,276.20 - Step 6: Final answer
x = 590,294.70
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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.