Finding the Fourth Proportional to 521,906.13, 719,734.55 and 340,560.09
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Solution
The fourth proportional to 521,906.13, 719,734.55 and 340,560.09 is: 469,649.32
Step by Step Solution
- Step 1: Write the proportion equation
521,906.13 : 719,734.55 = 340,560.09 : x - Step 2: Convert to fraction form
521,906.13/719,734.55 = 340,560.09/x - Step 3: Cross multiply
521,906.13x = 719,734.55 × 340,560.09 - Step 4: Simplify right side
521,906.13x = 245,112,861,421.31 - Step 5: Solve for x
x = 245,112,861,421.31/521,906.13 - Step 6: Final answer
x = 469,649.32
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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.