Finding the Fourth Proportional to 807,649.80, 1,211,474.70 and 492,721.80
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Solution
The fourth proportional to 807,649.80, 1,211,474.70 and 492,721.80 is: 739,082.70
Step by Step Solution
- Step 1: Write the proportion equation
807,649.80 : 1,211,474.70 = 492,721.80 : x - Step 2: Convert to fraction form
807,649.80/1,211,474.70 = 492,721.80/x - Step 3: Cross multiply
807,649.80x = 1,211,474.70 × 492,721.80 - Step 4: Simplify right side
807,649.80x = 596,919,994,838.46 - Step 5: Solve for x
x = 596,919,994,838.46/807,649.80 - Step 6: Final answer
x = 739,082.70
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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.