Finding the Fourth Proportional to 454,821.40, 682,232.10 and 313,103.80
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Solution
The fourth proportional to 454,821.40, 682,232.10 and 313,103.80 is: 469,655.70
Step by Step Solution
- Step 1: Write the proportion equation
454,821.40 : 682,232.10 = 313,103.80 : x - Step 2: Convert to fraction form
454,821.40/682,232.10 = 313,103.80/x - Step 3: Cross multiply
454,821.40x = 682,232.10 × 313,103.80 - Step 4: Simplify right side
454,821.40x = 213,609,462,991.98 - Step 5: Solve for x
x = 213,609,462,991.98/454,821.40 - Step 6: Final answer
x = 469,655.70
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1.5x scale
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.