Finding the Fourth Proportional to 665,656.74, 998,734.44 and 345,608.82
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Solution
The fourth proportional to 665,656.74, 998,734.44 and 345,608.82 is: 518,542.68
Step by Step Solution
- Step 1: Write the proportion equation
665,656.74 : 998,734.44 = 345,608.82 : x - Step 2: Convert to fraction form
665,656.74/998,734.44 = 345,608.82/x - Step 3: Cross multiply
665,656.74x = 998,734.44 × 345,608.82 - Step 4: Simplify right side
665,656.74x = 345,171,431,301.76 - Step 5: Solve for x
x = 345,171,431,301.76/665,656.74 - Step 6: Final answer
x = 518,542.68
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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.