Finding the Fourth Proportional to 820,432.08, 1,230,778.26 and 347,121
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Solution
The fourth proportional to 820,432.08, 1,230,778.26 and 347,121 is: 520,736.56
Step by Step Solution
- Step 1: Write the proportion equation
820,432.08 : 1,230,778.26 = 347,121 : x - Step 2: Convert to fraction form
820,432.08/1,230,778.26 = 347,121/x - Step 3: Cross multiply
820,432.08x = 1,230,778.26 × 347,121 - Step 4: Simplify right side
820,432.08x = 427,228,980,389.46 - Step 5: Solve for x
x = 427,228,980,389.46/820,432.08 - Step 6: Final answer
x = 520,736.56
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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.