Finding the Fourth Proportional to 621,551.96, 857,735.47 and 345,905.19
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Solution
The fourth proportional to 621,551.96, 857,735.47 and 345,905.19 is: 477,345.69
Step by Step Solution
- Step 1: Write the proportion equation
621,551.96 : 857,735.47 = 345,905.19 : x - Step 2: Convert to fraction form
621,551.96/857,735.47 = 345,905.19/x - Step 3: Cross multiply
621,551.96x = 857,735.47 × 345,905.19 - Step 4: Simplify right side
621,551.96x = 296,695,150,720.09 - Step 5: Solve for x
x = 296,695,150,720.09/621,551.96 - Step 6: Final answer
x = 477,345.69
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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.