Finding the Fourth Proportional to 438,457.92, 657,895.74 and 303,729.54
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Solution
The fourth proportional to 438,457.92, 657,895.74 and 303,729.54 is: 455,738.99
Step by Step Solution
- Step 1: Write the proportion equation
438,457.92 : 657,895.74 = 303,729.54 : x - Step 2: Convert to fraction form
438,457.92/657,895.74 = 303,729.54/x - Step 3: Cross multiply
438,457.92x = 657,895.74 × 303,729.54 - Step 4: Simplify right side
438,457.92x = 199,822,370,478.16 - Step 5: Solve for x
x = 199,822,370,478.16/438,457.92 - Step 6: Final answer
x = 455,738.99
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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.