Finding the Fourth Proportional to 420,883.40, 580,675.02 and 239,549.92
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Solution
The fourth proportional to 420,883.40, 580,675.02 and 239,549.92 is: 330,496.88
Step by Step Solution
- Step 1: Write the proportion equation
420,883.40 : 580,675.02 = 239,549.92 : x - Step 2: Convert to fraction form
420,883.40/580,675.02 = 239,549.92/x - Step 3: Cross multiply
420,883.40x = 580,675.02 × 239,549.92 - Step 4: Simplify right side
420,883.40x = 139,100,651,683.62 - Step 5: Solve for x
x = 139,100,651,683.62/420,883.40 - Step 6: Final answer
x = 330,496.88
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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.