Finding the Fourth Proportional to 407,397.36, 560,214.28 and 353,588.64
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Solution
The fourth proportional to 407,397.36, 560,214.28 and 353,588.64 is: 486,221.62
Step by Step Solution
- Step 1: Write the proportion equation
407,397.36 : 560,214.28 = 353,588.64 : x - Step 2: Convert to fraction form
407,397.36/560,214.28 = 353,588.64/x - Step 3: Cross multiply
407,397.36x = 560,214.28 × 353,588.64 - Step 4: Simplify right side
407,397.36x = 198,085,405,373.78 - Step 5: Solve for x
x = 198,085,405,373.78/407,397.36 - Step 6: Final answer
x = 486,221.62
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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.