Finding the Fourth Proportional to 1,420,997.50, 2,131,639.71 and 461,412.97
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Solution
The fourth proportional to 1,420,997.50, 2,131,639.71 and 461,412.97 is: 692,166.05
Step by Step Solution
- Step 1: Write the proportion equation
1,420,997.50 : 2,131,639.71 = 461,412.97 : x - Step 2: Convert to fraction form
1,420,997.50/2,131,639.71 = 461,412.97/x - Step 3: Cross multiply
1,420,997.50x = 2,131,639.71 × 461,412.97 - Step 4: Simplify right side
1,420,997.50x = 983,566,218,385.29 - Step 5: Solve for x
x = 983,566,218,385.29/1,420,997.50 - Step 6: Final answer
x = 692,166.05
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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.