Finding the Fourth Proportional to 678,418.67, 936,229.46 and 372,507.95
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Solution
The fourth proportional to 678,418.67, 936,229.46 and 372,507.95 is: 514,067.39
Step by Step Solution
- Step 1: Write the proportion equation
678,418.67 : 936,229.46 = 372,507.95 : x - Step 2: Convert to fraction form
678,418.67/936,229.46 = 372,507.95/x - Step 3: Cross multiply
678,418.67x = 936,229.46 × 372,507.95 - Step 4: Simplify right side
678,418.67x = 348,752,917,352.24 - Step 5: Solve for x
x = 348,752,917,352.24/678,418.67 - Step 6: Final answer
x = 514,067.39
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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.