Finding the Fourth Proportional to 512,214.20, 706,861.37 and 282,771.62
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Solution
The fourth proportional to 512,214.20, 706,861.37 and 282,771.62 is: 390,228.02
Step by Step Solution
- Step 1: Write the proportion equation
512,214.20 : 706,861.37 = 282,771.62 : x - Step 2: Convert to fraction form
512,214.20/706,861.37 = 282,771.62/x - Step 3: Cross multiply
512,214.20x = 706,861.37 × 282,771.62 - Step 4: Simplify right side
512,214.20x = 199,880,333,296.46 - Step 5: Solve for x
x = 199,880,333,296.46/512,214.20 - Step 6: Final answer
x = 390,228.02
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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.