Finding the Fourth Proportional to 822,817.24, 1,135,729.18 and 478,734.10
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Solution
The fourth proportional to 822,817.24, 1,135,729.18 and 478,734.10 is: 660,793.50
Step by Step Solution
- Step 1: Write the proportion equation
822,817.24 : 1,135,729.18 = 478,734.10 : x - Step 2: Convert to fraction form
822,817.24/1,135,729.18 = 478,734.10/x - Step 3: Cross multiply
822,817.24x = 1,135,729.18 × 478,734.10 - Step 4: Simplify right side
822,817.24x = 543,712,286,831.04 - Step 5: Solve for x
x = 543,712,286,831.04/822,817.24 - Step 6: Final answer
x = 660,793.50
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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.