Finding the Fourth Proportional to 1,297,193.92, 1,790,617.92 and 1,020,834.88
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Solution
The fourth proportional to 1,297,193.92, 1,790,617.92 and 1,020,834.88 is: 1,409,137.99
Step by Step Solution
- Step 1: Write the proportion equation
1,297,193.92 : 1,790,617.92 = 1,020,834.88 : x - Step 2: Convert to fraction form
1,297,193.92/1,790,617.92 = 1,020,834.88/x - Step 3: Cross multiply
1,297,193.92x = 1,790,617.92 × 1,020,834.88 - Step 4: Simplify right side
1,297,193.92x = 1,827,925,229,489.05 - Step 5: Solve for x
x = 1,827,925,229,489.05/1,297,193.92 - Step 6: Final answer
x = 1,409,137.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.