Finding the Fourth Proportional to 1,262,811.20, 1,894,233.21 and 421,362.95
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Solution
The fourth proportional to 1,262,811.20, 1,894,233.21 and 421,362.95 is: 632,049.90
Step by Step Solution
- Step 1: Write the proportion equation
1,262,811.20 : 1,894,233.21 = 421,362.95 : x - Step 2: Convert to fraction form
1,262,811.20/1,894,233.21 = 421,362.95/x - Step 3: Cross multiply
1,262,811.20x = 1,894,233.21 × 421,362.95 - Step 4: Simplify right side
1,262,811.20x = 798,159,693,353.57 - Step 5: Solve for x
x = 798,159,693,353.57/1,262,811.20 - Step 6: Final answer
x = 632,049.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.