Finding the Fourth Proportional to 1,431,608.45, 1,975,657.37 and 787,044.87
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Solution
The fourth proportional to 1,431,608.45, 1,975,657.37 and 787,044.87 is: 1,086,142.66
Step by Step Solution
- Step 1: Write the proportion equation
1,431,608.45 : 1,975,657.37 = 787,044.87 : x - Step 2: Convert to fraction form
1,431,608.45/1,975,657.37 = 787,044.87/x - Step 3: Cross multiply
1,431,608.45x = 1,975,657.37 × 787,044.87 - Step 4: Simplify right side
1,431,608.45x = 1,554,930,997,936.19 - Step 5: Solve for x
x = 1,554,930,997,936.19/1,431,608.45 - Step 6: Final answer
x = 1,086,142.66
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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.