Finding the Fourth Proportional to 1,445,125.44, 1,989,723.23 and 1,226,902.49
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Solution
The fourth proportional to 1,445,125.44, 1,989,723.23 and 1,226,902.49 is: 1,689,262.61
Step by Step Solution
- Step 1: Write the proportion equation
1,445,125.44 : 1,989,723.23 = 1,226,902.49 : x - Step 2: Convert to fraction form
1,445,125.44/1,989,723.23 = 1,226,902.49/x - Step 3: Cross multiply
1,445,125.44x = 1,989,723.23 × 1,226,902.49 - Step 4: Simplify right side
1,445,125.44x = 2,441,196,383,390.79 - Step 5: Solve for x
x = 2,441,196,383,390.79/1,445,125.44 - Step 6: Final answer
x = 1,689,262.61
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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.