Finding the Fourth Proportional to 1,898,297.20, 2,620,872.74 and 1,693,996.84
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Solution
The fourth proportional to 1,898,297.20, 2,620,872.74 and 1,693,996.84 is: 2,338,806.66
Step by Step Solution
- Step 1: Write the proportion equation
1,898,297.20 : 2,620,872.74 = 1,693,996.84 : x - Step 2: Convert to fraction form
1,898,297.20/2,620,872.74 = 1,693,996.84/x - Step 3: Cross multiply
1,898,297.20x = 2,620,872.74 × 1,693,996.84 - Step 4: Simplify right side
1,898,297.20x = 4,439,750,118,027.79 - Step 5: Solve for x
x = 4,439,750,118,027.79/1,898,297.20 - Step 6: Final answer
x = 2,338,806.66
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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.