Finding the Fourth Proportional to 743,416.68, 1,025,912.32 and 403,881.96
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Solution
The fourth proportional to 743,416.68, 1,025,912.32 and 403,881.96 is: 557,355.64
Step by Step Solution
- Step 1: Write the proportion equation
743,416.68 : 1,025,912.32 = 403,881.96 : x - Step 2: Convert to fraction form
743,416.68/1,025,912.32 = 403,881.96/x - Step 3: Cross multiply
743,416.68x = 1,025,912.32 × 403,881.96 - Step 4: Simplify right side
743,416.68x = 414,347,478,589.75 - Step 5: Solve for x
x = 414,347,478,589.75/743,416.68 - Step 6: Final answer
x = 557,355.64
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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.