Finding the Fourth Proportional to 449,700.40, 620,594.70 and 245,759.96
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Solution
The fourth proportional to 449,700.40, 620,594.70 and 245,759.96 is: 339,153.20
Step by Step Solution
- Step 1: Write the proportion equation
449,700.40 : 620,594.70 = 245,759.96 : x - Step 2: Convert to fraction form
449,700.40/620,594.70 = 245,759.96/x - Step 3: Cross multiply
449,700.40x = 620,594.70 × 245,759.96 - Step 4: Simplify right side
449,700.40x = 152,517,328,648.21 - Step 5: Solve for x
x = 152,517,328,648.21/449,700.40 - Step 6: Final answer
x = 339,153.20
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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.