Finding the Fourth Proportional to 808,840.54, 1,213,261.21 and 276,366.79
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Solution
The fourth proportional to 808,840.54, 1,213,261.21 and 276,366.79 is: 414,550.32
Step by Step Solution
- Step 1: Write the proportion equation
808,840.54 : 1,213,261.21 = 276,366.79 : x - Step 2: Convert to fraction form
808,840.54/1,213,261.21 = 276,366.79/x - Step 3: Cross multiply
808,840.54x = 1,213,261.21 × 276,366.79 - Step 4: Simplify right side
808,840.54x = 335,305,100,299.38 - Step 5: Solve for x
x = 335,305,100,299.38/808,840.54 - Step 6: Final answer
x = 414,550.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.