Finding the Fourth Proportional to 980,489.70, 1,470,734.55 and 731,657.70
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Solution
The fourth proportional to 980,489.70, 1,470,734.55 and 731,657.70 is: 1,097,486.55
Step by Step Solution
- Step 1: Write the proportion equation
980,489.70 : 1,470,734.55 = 731,657.70 : x - Step 2: Convert to fraction form
980,489.70/1,470,734.55 = 731,657.70/x - Step 3: Cross multiply
980,489.70x = 1,470,734.55 × 731,657.70 - Step 4: Simplify right side
980,489.70x = 1,076,074,258,163.53 - Step 5: Solve for x
x = 1,076,074,258,163.53/980,489.70 - Step 6: Final answer
x = 1,097,486.55
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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.