Finding the Fourth Proportional to 1,278,472.96, 1,917,116.16 and 746,147.20
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Solution
The fourth proportional to 1,278,472.96, 1,917,116.16 and 746,147.20 is: 1,118,874.55
Step by Step Solution
- Step 1: Write the proportion equation
1,278,472.96 : 1,917,116.16 = 746,147.20 : x - Step 2: Convert to fraction form
1,278,472.96/1,917,116.16 = 746,147.20/x - Step 3: Cross multiply
1,278,472.96x = 1,917,116.16 × 746,147.20 - Step 4: Simplify right side
1,278,472.96x = 1,430,450,854,858.75 - Step 5: Solve for x
x = 1,430,450,854,858.75/1,278,472.96 - Step 6: Final answer
x = 1,118,874.55
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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.