Finding the Fourth Proportional to 454,232.20, 681,348.30 and 318,929.80
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Solution
The fourth proportional to 454,232.20, 681,348.30 and 318,929.80 is: 478,394.70
Step by Step Solution
- Step 1: Write the proportion equation
454,232.20 : 681,348.30 = 318,929.80 : x - Step 2: Convert to fraction form
454,232.20/681,348.30 = 318,929.80/x - Step 3: Cross multiply
454,232.20x = 681,348.30 × 318,929.80 - Step 4: Simplify right side
454,232.20x = 217,302,277,049.34 - Step 5: Solve for x
x = 217,302,277,049.34/454,232.20 - Step 6: Final answer
x = 478,394.70
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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.