Finding the Fourth Proportional to 839,571.28, 1,259,022.84 and 306,970.96
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Solution
The fourth proportional to 839,571.28, 1,259,022.84 and 306,970.96 is: 460,334.29
Step by Step Solution
- Step 1: Write the proportion equation
839,571.28 : 1,259,022.84 = 306,970.96 : x - Step 2: Convert to fraction form
839,571.28/1,259,022.84 = 306,970.96/x - Step 3: Cross multiply
839,571.28x = 1,259,022.84 × 306,970.96 - Step 4: Simplify right side
839,571.28x = 386,483,449,856.73 - Step 5: Solve for x
x = 386,483,449,856.73/839,571.28 - Step 6: Final answer
x = 460,334.29
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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.