Finding the Fourth Proportional to 748,722.68, 1,033,234.80 and 409,190.84
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Solution
The fourth proportional to 748,722.68, 1,033,234.80 and 409,190.84 is: 564,681.99
Step by Step Solution
- Step 1: Write the proportion equation
748,722.68 : 1,033,234.80 = 409,190.84 : x - Step 2: Convert to fraction form
748,722.68/1,033,234.80 = 409,190.84/x - Step 3: Cross multiply
748,722.68x = 1,033,234.80 × 409,190.84 - Step 4: Simplify right side
748,722.68x = 422,790,215,729.23 - Step 5: Solve for x
x = 422,790,215,729.23/748,722.68 - Step 6: Final answer
x = 564,681.99
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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.