Finding the Fourth Proportional to 457,211.28, 631,170.36 and 304,503.60
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Solution
The fourth proportional to 457,211.28, 631,170.36 and 304,503.60 is: 420,360.68
Step by Step Solution
- Step 1: Write the proportion equation
457,211.28 : 631,170.36 = 304,503.60 : x - Step 2: Convert to fraction form
457,211.28/631,170.36 = 304,503.60/x - Step 3: Cross multiply
457,211.28x = 631,170.36 × 304,503.60 - Step 4: Simplify right side
457,211.28x = 192,193,646,833.30 - Step 5: Solve for x
x = 192,193,646,833.30/457,211.28 - Step 6: Final answer
x = 420,360.68
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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.