Finding the Fourth Proportional to 686,593.70, 1,030,042.22 and 231,207.28
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Solution
The fourth proportional to 686,593.70, 1,030,042.22 and 231,207.28 is: 346,861.99
Step by Step Solution
- Step 1: Write the proportion equation
686,593.70 : 1,030,042.22 = 231,207.28 : x - Step 2: Convert to fraction form
686,593.70/1,030,042.22 = 231,207.28/x - Step 3: Cross multiply
686,593.70x = 1,030,042.22 × 231,207.28 - Step 4: Simplify right side
686,593.70x = 238,153,259,971.36 - Step 5: Solve for x
x = 238,153,259,971.36/686,593.70 - Step 6: Final answer
x = 346,861.99
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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.