Finding the Fourth Proportional to 634,738.28, 875,939.87 and 348,260.41
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Solution
The fourth proportional to 634,738.28, 875,939.87 and 348,260.41 is: 480,599.95
Step by Step Solution
- Step 1: Write the proportion equation
634,738.28 : 875,939.87 = 348,260.41 : x - Step 2: Convert to fraction form
634,738.28/875,939.87 = 348,260.41/x - Step 3: Cross multiply
634,738.28x = 875,939.87 × 348,260.41 - Step 4: Simplify right side
634,738.28x = 305,055,180,227.12 - Step 5: Solve for x
x = 305,055,180,227.12/634,738.28 - Step 6: Final answer
x = 480,599.95
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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.