Finding the Fourth Proportional to 946,353.20, 1,305,987.18 and 516,651.44
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Solution
The fourth proportional to 946,353.20, 1,305,987.18 and 516,651.44 is: 712,989.78
Step by Step Solution
- Step 1: Write the proportion equation
946,353.20 : 1,305,987.18 = 516,651.44 : x - Step 2: Convert to fraction form
946,353.20/1,305,987.18 = 516,651.44/x - Step 3: Cross multiply
946,353.20x = 1,305,987.18 × 516,651.44 - Step 4: Simplify right side
946,353.20x = 674,740,157,168.54 - Step 5: Solve for x
x = 674,740,157,168.54/946,353.20 - Step 6: Final answer
x = 712,989.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.