Finding the Fourth Proportional to 467,324.64, 644,484.60 and 306,120.87
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Solution
The fourth proportional to 467,324.64, 644,484.60 and 306,120.87 is: 422,169.45
Step by Step Solution
- Step 1: Write the proportion equation
467,324.64 : 644,484.60 = 306,120.87 : x - Step 2: Convert to fraction form
467,324.64/644,484.60 = 306,120.87/x - Step 3: Cross multiply
467,324.64x = 644,484.60 × 306,120.87 - Step 4: Simplify right side
467,324.64x = 197,290,186,453.60 - Step 5: Solve for x
x = 197,290,186,453.60/467,324.64 - Step 6: Final answer
x = 422,169.45
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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.