Finding the Fourth Proportional to 618,147.72, 853,033.68 and 346,213.08
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Solution
The fourth proportional to 618,147.72, 853,033.68 and 346,213.08 is: 477,768.35
Step by Step Solution
- Step 1: Write the proportion equation
618,147.72 : 853,033.68 = 346,213.08 : x - Step 2: Convert to fraction form
618,147.72/853,033.68 = 346,213.08/x - Step 3: Cross multiply
618,147.72x = 853,033.68 × 346,213.08 - Step 4: Simplify right side
618,147.72x = 295,331,417,696.53 - Step 5: Solve for x
x = 295,331,417,696.53/618,147.72 - Step 6: Final answer
x = 477,768.35
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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.