Finding the Fourth Proportional to 356,424.80, 534,736.29 and 289,699.70
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Solution
The fourth proportional to 356,424.80, 534,736.29 and 289,699.70 is: 434,630.09
Step by Step Solution
- Step 1: Write the proportion equation
356,424.80 : 534,736.29 = 289,699.70 : x - Step 2: Convert to fraction form
356,424.80/534,736.29 = 289,699.70/x - Step 3: Cross multiply
356,424.80x = 534,736.29 × 289,699.70 - Step 4: Simplify right side
356,424.80x = 154,912,942,792.11 - Step 5: Solve for x
x = 154,912,942,792.11/356,424.80 - Step 6: Final answer
x = 434,630.09
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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.