Finding the Fourth Proportional to 853,701.10, 1,178,174.73 and 486,193.87
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Solution
The fourth proportional to 853,701.10, 1,178,174.73 and 486,193.87 is: 670,985.82
Step by Step Solution
- Step 1: Write the proportion equation
853,701.10 : 1,178,174.73 = 486,193.87 : x - Step 2: Convert to fraction form
853,701.10/1,178,174.73 = 486,193.87/x - Step 3: Cross multiply
853,701.10x = 1,178,174.73 × 486,193.87 - Step 4: Simplify right side
853,701.10x = 572,821,331,514.91 - Step 5: Solve for x
x = 572,821,331,514.91/853,701.10 - Step 6: Final answer
x = 670,985.82
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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.