Finding the Fourth Proportional to 1,274,125.44, 1,912,369.68 and 643,481.76
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Solution
The fourth proportional to 1,274,125.44, 1,912,369.68 and 643,481.76 is: 965,819.35
Step by Step Solution
- Step 1: Write the proportion equation
1,274,125.44 : 1,912,369.68 = 643,481.76 : x - Step 2: Convert to fraction form
1,274,125.44/1,912,369.68 = 643,481.76/x - Step 3: Cross multiply
1,274,125.44x = 1,912,369.68 × 643,481.76 - Step 4: Simplify right side
1,274,125.44x = 1,230,575,007,457.04 - Step 5: Solve for x
x = 1,230,575,007,457.04/1,274,125.44 - Step 6: Final answer
x = 965,819.35
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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.