Finding the Fourth Proportional to 1,146,690.20, 1,720,812.90 and 746,355.80
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Solution
The fourth proportional to 1,146,690.20, 1,720,812.90 and 746,355.80 is: 1,120,039.82
Step by Step Solution
- Step 1: Write the proportion equation
1,146,690.20 : 1,720,812.90 = 746,355.80 : x - Step 2: Convert to fraction form
1,146,690.20/1,720,812.90 = 746,355.80/x - Step 3: Cross multiply
1,146,690.20x = 1,720,812.90 × 746,355.80 - Step 4: Simplify right side
1,146,690.20x = 1,284,338,688,629.82 - Step 5: Solve for x
x = 1,284,338,688,629.82/1,146,690.20 - Step 6: Final answer
x = 1,120,039.82
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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.