Finding the Fourth Proportional to 1,763,793.09, 2,431,424.79 and 1,376,169.21
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Solution
The fourth proportional to 1,763,793.09, 2,431,424.79 and 1,376,169.21 is: 1,897,077.36
Step by Step Solution
- Step 1: Write the proportion equation
1,763,793.09 : 2,431,424.79 = 1,376,169.21 : x - Step 2: Convert to fraction form
1,763,793.09/2,431,424.79 = 1,376,169.21/x - Step 3: Cross multiply
1,763,793.09x = 2,431,424.79 × 1,376,169.21 - Step 4: Simplify right side
1,763,793.09x = 3,346,051,932,428.72 - Step 5: Solve for x
x = 3,346,051,932,428.72/1,763,793.09 - Step 6: Final answer
x = 1,897,077.36
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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.