Finding the Fourth Proportional to 853,197.91, 1,177,391.95 and 490,613.13
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Solution
The fourth proportional to 853,197.91, 1,177,391.95 and 490,613.13 is: 677,033.95
Step by Step Solution
- Step 1: Write the proportion equation
853,197.91 : 1,177,391.95 = 490,613.13 : x - Step 2: Convert to fraction form
853,197.91/1,177,391.95 = 490,613.13/x - Step 3: Cross multiply
853,197.91x = 1,177,391.95 × 490,613.13 - Step 4: Simplify right side
853,197.91x = 577,643,948,048.06 - Step 5: Solve for x
x = 577,643,948,048.06/853,197.91 - Step 6: Final answer
x = 677,033.95
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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.