Finding the Fourth Proportional to 885,615.81, 1,222,149.11 and 483,207.81
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Solution
The fourth proportional to 885,615.81, 1,222,149.11 and 483,207.81 is: 666,826.39
Step by Step Solution
- Step 1: Write the proportion equation
885,615.81 : 1,222,149.11 = 483,207.81 : x - Step 2: Convert to fraction form
885,615.81/1,222,149.11 = 483,207.81/x - Step 3: Cross multiply
885,615.81x = 1,222,149.11 × 483,207.81 - Step 4: Simplify right side
885,615.81x = 590,551,992,520.51 - Step 5: Solve for x
x = 590,551,992,520.51/885,615.81 - Step 6: Final answer
x = 666,826.39
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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.