Finding the Fourth Proportional to 618,771.06, 853,861.10 and 343,143.14
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Solution
The fourth proportional to 618,771.06, 853,861.10 and 343,143.14 is: 473,513.70
Step by Step Solution
- Step 1: Write the proportion equation
618,771.06 : 853,861.10 = 343,143.14 : x - Step 2: Convert to fraction form
618,771.06/853,861.10 = 343,143.14/x - Step 3: Cross multiply
618,771.06x = 853,861.10 × 343,143.14 - Step 4: Simplify right side
618,771.06x = 292,996,572,992.83 - Step 5: Solve for x
x = 292,996,572,992.83/618,771.06 - Step 6: Final answer
x = 473,513.70
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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.