Finding the Fourth Proportional to 724,453.60, 1,085,902.80 and 275,000.80
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Solution
The fourth proportional to 724,453.60, 1,085,902.80 and 275,000.80 is: 412,206.02
Step by Step Solution
- Step 1: Write the proportion equation
724,453.60 : 1,085,902.80 = 275,000.80 : x - Step 2: Convert to fraction form
724,453.60/1,085,902.80 = 275,000.80/x - Step 3: Cross multiply
724,453.60x = 1,085,902.80 × 275,000.80 - Step 4: Simplify right side
724,453.60x = 298,624,138,722.24 - Step 5: Solve for x
x = 298,624,138,722.24/724,453.60 - Step 6: Final answer
x = 412,206.02
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1.5x scale
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.