Finding the Fourth Proportional to 638,155.20, 957,232.80 and 322,571.10
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Solution
The fourth proportional to 638,155.20, 957,232.80 and 322,571.10 is: 483,856.65
Step by Step Solution
- Step 1: Write the proportion equation
638,155.20 : 957,232.80 = 322,571.10 : x - Step 2: Convert to fraction form
638,155.20/957,232.80 = 322,571.10/x - Step 3: Cross multiply
638,155.20x = 957,232.80 × 322,571.10 - Step 4: Simplify right side
638,155.20x = 308,775,637,252.08 - Step 5: Solve for x
x = 308,775,637,252.08/638,155.20 - Step 6: Final answer
x = 483,856.65
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Similar ratio
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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.