Finding the Fourth Proportional to 748,988.81, 1,033,608.21 and 409,457.06
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Solution
The fourth proportional to 748,988.81, 1,033,608.21 and 409,457.06 is: 565,052.74
Step by Step Solution
- Step 1: Write the proportion equation
748,988.81 : 1,033,608.21 = 409,457.06 : x - Step 2: Convert to fraction form
748,988.81/1,033,608.21 = 409,457.06/x - Step 3: Cross multiply
748,988.81x = 1,033,608.21 × 409,457.06 - Step 4: Simplify right side
748,988.81x = 423,218,178,858.46 - Step 5: Solve for x
x = 423,218,178,858.46/748,988.81 - Step 6: Final answer
x = 565,052.74
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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.