Finding the Fourth Proportional to 742,161.12, 1,024,181.76 and 402,629.44
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Solution
The fourth proportional to 742,161.12, 1,024,181.76 and 402,629.44 is: 555,628.31
Step by Step Solution
- Step 1: Write the proportion equation
742,161.12 : 1,024,181.76 = 402,629.44 : x - Step 2: Convert to fraction form
742,161.12/1,024,181.76 = 402,629.44/x - Step 3: Cross multiply
742,161.12x = 1,024,181.76 × 402,629.44 - Step 4: Simplify right side
742,161.12x = 412,365,728,487.01 - Step 5: Solve for x
x = 412,365,728,487.01/742,161.12 - Step 6: Final answer
x = 555,628.31
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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.