Finding the Fourth Proportional to 861,453.38, 1,292,179.99 and 230,350.79
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Solution
The fourth proportional to 861,453.38, 1,292,179.99 and 230,350.79 is: 345,526.16
Step by Step Solution
- Step 1: Write the proportion equation
861,453.38 : 1,292,179.99 = 230,350.79 : x - Step 2: Convert to fraction form
861,453.38/1,292,179.99 = 230,350.79/x - Step 3: Cross multiply
861,453.38x = 1,292,179.99 × 230,350.79 - Step 4: Simplify right side
861,453.38x = 297,654,677,336.66 - Step 5: Solve for x
x = 297,654,677,336.66/861,453.38 - Step 6: Final answer
x = 345,526.16
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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.