Finding the Fourth Proportional to 624,149.80, 936,224.70 and 309,221.80
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Solution
The fourth proportional to 624,149.80, 936,224.70 and 309,221.80 is: 463,832.70
Step by Step Solution
- Step 1: Write the proportion equation
624,149.80 : 936,224.70 = 309,221.80 : x - Step 2: Convert to fraction form
624,149.80/936,224.70 = 309,221.80/x - Step 3: Cross multiply
624,149.80x = 936,224.70 × 309,221.80 - Step 4: Simplify right side
624,149.80x = 289,501,086,938.46 - Step 5: Solve for x
x = 289,501,086,938.46/624,149.80 - Step 6: Final answer
x = 463,832.70
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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.