Finding the Fourth Proportional to 324,646.20, 486,638.10 and 219,475.80
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Solution
The fourth proportional to 324,646.20, 486,638.10 and 219,475.80 is: 328,989.79
Step by Step Solution
- Step 1: Write the proportion equation
324,646.20 : 486,638.10 = 219,475.80 : x - Step 2: Convert to fraction form
324,646.20/486,638.10 = 219,475.80/x - Step 3: Cross multiply
324,646.20x = 486,638.10 × 219,475.80 - Step 4: Simplify right side
324,646.20x = 106,805,286,307.98 - Step 5: Solve for x
x = 106,805,286,307.98/324,646.20 - Step 6: Final answer
x = 328,989.79
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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.