Finding the Fourth Proportional to 627,077.54, 865,376.26 and 355,138.68
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Solution
The fourth proportional to 627,077.54, 865,376.26 and 355,138.68 is: 490,096.62
Step by Step Solution
- Step 1: Write the proportion equation
627,077.54 : 865,376.26 = 355,138.68 : x - Step 2: Convert to fraction form
627,077.54/865,376.26 = 355,138.68/x - Step 3: Cross multiply
627,077.54x = 865,376.26 × 355,138.68 - Step 4: Simplify right side
627,077.54x = 307,328,582,679.74 - Step 5: Solve for x
x = 307,328,582,679.74/627,077.54 - Step 6: Final answer
x = 490,096.62
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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.