Finding the Fourth Proportional to 684,821.92, 944,824.76 and 394,427.68
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Solution
The fourth proportional to 684,821.92, 944,824.76 and 394,427.68 is: 544,178.01
Step by Step Solution
- Step 1: Write the proportion equation
684,821.92 : 944,824.76 = 394,427.68 : x - Step 2: Convert to fraction form
684,821.92/944,824.76 = 394,427.68/x - Step 3: Cross multiply
684,821.92x = 944,824.76 × 394,427.68 - Step 4: Simplify right side
684,821.92x = 372,665,033,369.23 - Step 5: Solve for x
x = 372,665,033,369.23/684,821.92 - Step 6: Final answer
x = 544,178.01
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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.