Finding the Fourth Proportional to 665,718.36, 998,161.50 and 281,269.59
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Solution
The fourth proportional to 665,718.36, 998,161.50 and 281,269.59 is: 421,728.61
Step by Step Solution
- Step 1: Write the proportion equation
665,718.36 : 998,161.50 = 281,269.59 : x - Step 2: Convert to fraction form
665,718.36/998,161.50 = 281,269.59/x - Step 3: Cross multiply
665,718.36x = 998,161.50 × 281,269.59 - Step 4: Simplify right side
665,718.36x = 280,752,475,858.79 - Step 5: Solve for x
x = 280,752,475,858.79/665,718.36 - Step 6: Final answer
x = 421,728.61
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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.