Finding the Fourth Proportional to 2,864,990.70, 3,954,248.79 and 1,642,115.85
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Solution
The fourth proportional to 2,864,990.70, 3,954,248.79 and 1,642,115.85 is: 2,266,441.78
Step by Step Solution
- Step 1: Write the proportion equation
2,864,990.70 : 3,954,248.79 = 1,642,115.85 : x - Step 2: Convert to fraction form
2,864,990.70/3,954,248.79 = 1,642,115.85/x - Step 3: Cross multiply
2,864,990.70x = 3,954,248.79 × 1,642,115.85 - Step 4: Simplify right side
2,864,990.70x = 6,493,334,612,902.32 - Step 5: Solve for x
x = 6,493,334,612,902.32/2,864,990.70 - Step 6: Final answer
x = 2,266,441.78
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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.