Finding the Fourth Proportional to 491,243.13, 677,879.01 and 276,341.76
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Solution
The fourth proportional to 491,243.13, 677,879.01 and 276,341.76 is: 381,331.09
Step by Step Solution
- Step 1: Write the proportion equation
491,243.13 : 677,879.01 = 276,341.76 : x - Step 2: Convert to fraction form
491,243.13/677,879.01 = 276,341.76/x - Step 3: Cross multiply
491,243.13x = 677,879.01 × 276,341.76 - Step 4: Simplify right side
491,243.13x = 187,326,278,690.46 - Step 5: Solve for x
x = 187,326,278,690.46/491,243.13 - Step 6: Final answer
x = 381,331.09
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1.5x scale
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.