Finding the Fourth Proportional to 1,820,972.28, 2,512,942.23 and 1,005,176.49
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Solution
The fourth proportional to 1,820,972.28, 2,512,942.23 and 1,005,176.49 is: 1,387,143.82
Step by Step Solution
- Step 1: Write the proportion equation
1,820,972.28 : 2,512,942.23 = 1,005,176.49 : x - Step 2: Convert to fraction form
1,820,972.28/2,512,942.23 = 1,005,176.49/x - Step 3: Cross multiply
1,820,972.28x = 2,512,942.23 × 1,005,176.49 - Step 4: Simplify right side
1,820,972.28x = 2,525,950,450,324.17 - Step 5: Solve for x
x = 2,525,950,450,324.17/1,820,972.28 - Step 6: Final answer
x = 1,387,143.82
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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.