Finding the Fourth Proportional to 402,755.68, 555,883.32 and 307,091.44
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Solution
The fourth proportional to 402,755.68, 555,883.32 and 307,091.44 is: 423,847.55
Step by Step Solution
- Step 1: Write the proportion equation
402,755.68 : 555,883.32 = 307,091.44 : x - Step 2: Convert to fraction form
402,755.68/555,883.32 = 307,091.44/x - Step 3: Cross multiply
402,755.68x = 555,883.32 × 307,091.44 - Step 4: Simplify right side
402,755.68x = 170,707,009,210.78 - Step 5: Solve for x
x = 170,707,009,210.78/402,755.68 - Step 6: Final answer
x = 423,847.55
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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.