Finding the Fourth Proportional to 664,481.80, 996,722.70 and 243,921.70
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Solution
The fourth proportional to 664,481.80, 996,722.70 and 243,921.70 is: 365,882.55
Step by Step Solution
- Step 1: Write the proportion equation
664,481.80 : 996,722.70 = 243,921.70 : x - Step 2: Convert to fraction form
664,481.80/996,722.70 = 243,921.70/x - Step 3: Cross multiply
664,481.80x = 996,722.70 × 243,921.70 - Step 4: Simplify right side
664,481.80x = 243,122,295,412.59 - Step 5: Solve for x
x = 243,122,295,412.59/664,481.80 - Step 6: Final answer
x = 365,882.55
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Double scale
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Similar ratio
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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.