Finding the Fourth Proportional to 869,609.70, 1,304,414.55 and 659,657.70
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Solution
The fourth proportional to 869,609.70, 1,304,414.55 and 659,657.70 is: 989,486.55
Step by Step Solution
- Step 1: Write the proportion equation
869,609.70 : 1,304,414.55 = 659,657.70 : x - Step 2: Convert to fraction form
869,609.70/1,304,414.55 = 659,657.70/x - Step 3: Cross multiply
869,609.70x = 1,304,414.55 × 659,657.70 - Step 4: Simplify right side
869,609.70x = 860,467,101,899.54 - Step 5: Solve for x
x = 860,467,101,899.54/869,609.70 - Step 6: Final answer
x = 989,486.55
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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.