Finding the Fourth Proportional to 1,297,229.76, 1,790,166.55 and 716,492.70
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Solution
The fourth proportional to 1,297,229.76, 1,790,166.55 and 716,492.70 is: 988,754.12
Step by Step Solution
- Step 1: Write the proportion equation
1,297,229.76 : 1,790,166.55 = 716,492.70 : x - Step 2: Convert to fraction form
1,297,229.76/1,790,166.55 = 716,492.70/x - Step 3: Cross multiply
1,297,229.76x = 1,790,166.55 × 716,492.70 - Step 4: Simplify right side
1,297,229.76x = 1,282,641,264,859.19 - Step 5: Solve for x
x = 1,282,641,264,859.19/1,297,229.76 - Step 6: Final answer
x = 988,754.12
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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.