Finding the Fourth Proportional to 748,718.68, 1,033,229.28 and 409,186.84
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Solution
The fourth proportional to 748,718.68, 1,033,229.28 and 409,186.84 is: 564,676.47
Step by Step Solution
- Step 1: Write the proportion equation
748,718.68 : 1,033,229.28 = 409,186.84 : x - Step 2: Convert to fraction form
748,718.68/1,033,229.28 = 409,186.84/x - Step 3: Cross multiply
748,718.68x = 1,033,229.28 × 409,186.84 - Step 4: Simplify right side
748,718.68x = 422,783,824,078.68 - Step 5: Solve for x
x = 422,783,824,078.68/748,718.68 - Step 6: Final answer
x = 564,676.47
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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.