Finding the Fourth Proportional to 853,670.24, 1,177,734.84 and 491,036.48
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Solution
The fourth proportional to 853,670.24, 1,177,734.84 and 491,036.48 is: 677,440.47
Step by Step Solution
- Step 1: Write the proportion equation
853,670.24 : 1,177,734.84 = 491,036.48 : x - Step 2: Convert to fraction form
853,670.24/1,177,734.84 = 491,036.48/x - Step 3: Cross multiply
853,670.24x = 1,177,734.84 × 491,036.48 - Step 4: Simplify right side
853,670.24x = 578,310,770,206.96 - Step 5: Solve for x
x = 578,310,770,206.96/853,670.24 - Step 6: Final answer
x = 677,440.47
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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.