Finding the Fourth Proportional to 434,135.20, 651,202.80 and 394,736.80
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Solution
The fourth proportional to 434,135.20, 651,202.80 and 394,736.80 is: 592,105.20
Step by Step Solution
- Step 1: Write the proportion equation
434,135.20 : 651,202.80 = 394,736.80 : x - Step 2: Convert to fraction form
434,135.20/651,202.80 = 394,736.80/x - Step 3: Cross multiply
434,135.20x = 651,202.80 × 394,736.80 - Step 4: Simplify right side
434,135.20x = 257,053,709,423.04 - Step 5: Solve for x
x = 257,053,709,423.04/434,135.20 - Step 6: Final answer
x = 592,105.20
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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.