Finding the Fourth Proportional to 813,930.24, 1,122,989.76 and 469,738.56
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Solution
The fourth proportional to 813,930.24, 1,122,989.76 and 469,738.56 is: 648,104.18
Step by Step Solution
- Step 1: Write the proportion equation
813,930.24 : 1,122,989.76 = 469,738.56 : x - Step 2: Convert to fraction form
813,930.24/1,122,989.76 = 469,738.56/x - Step 3: Cross multiply
813,930.24x = 1,122,989.76 × 469,738.56 - Step 4: Simplify right side
813,930.24x = 527,511,592,757.15 - Step 5: Solve for x
x = 527,511,592,757.15/813,930.24 - Step 6: Final answer
x = 648,104.18
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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.