Finding the Fourth Proportional to 2,028,383.30, 2,798,348.58 and 1,212,121.10
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Solution
The fourth proportional to 2,028,383.30, 2,798,348.58 and 1,212,121.10 is: 1,672,236.88
Step by Step Solution
- Step 1: Write the proportion equation
2,028,383.30 : 2,798,348.58 = 1,212,121.10 : x - Step 2: Convert to fraction form
2,028,383.30/2,798,348.58 = 1,212,121.10/x - Step 3: Cross multiply
2,028,383.30x = 2,798,348.58 × 1,212,121.10 - Step 4: Simplify right side
2,028,383.30x = 3,391,937,365,968.91 - Step 5: Solve for x
x = 3,391,937,365,968.91/2,028,383.30 - Step 6: Final answer
x = 1,672,236.88
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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.