Finding the Fourth Proportional to 665,715.77, 998,157.61 and 281,266.99
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Solution
The fourth proportional to 665,715.77, 998,157.61 and 281,266.99 is: 421,724.71
Step by Step Solution
- Step 1: Write the proportion equation
665,715.77 : 998,157.61 = 281,266.99 : x - Step 2: Convert to fraction form
665,715.77/998,157.61 = 281,266.99/x - Step 3: Cross multiply
665,715.77x = 998,157.61 × 281,266.99 - Step 4: Simplify right side
665,715.77x = 280,748,790,148.74 - Step 5: Solve for x
x = 280,748,790,148.74/665,715.77 - Step 6: Final answer
x = 421,724.71
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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.