Finding the Fourth Proportional to 627,418.44, 865,842.21 and 340,940.07
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Solution
The fourth proportional to 627,418.44, 865,842.21 and 340,940.07 is: 470,499.88
Step by Step Solution
- Step 1: Write the proportion equation
627,418.44 : 865,842.21 = 340,940.07 : x - Step 2: Convert to fraction form
627,418.44/865,842.21 = 340,940.07/x - Step 3: Cross multiply
627,418.44x = 865,842.21 × 340,940.07 - Step 4: Simplify right side
627,418.44x = 295,200,303,686.36 - Step 5: Solve for x
x = 295,200,303,686.36/627,418.44 - Step 6: Final answer
x = 470,499.88
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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.