Finding the Fourth Proportional to 621,677.24, 857,913.26 and 349,745.32
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Solution
The fourth proportional to 621,677.24, 857,913.26 and 349,745.32 is: 482,647.79
Step by Step Solution
- Step 1: Write the proportion equation
621,677.24 : 857,913.26 = 349,745.32 : x - Step 2: Convert to fraction form
621,677.24/857,913.26 = 349,745.32/x - Step 3: Cross multiply
621,677.24x = 857,913.26 × 349,745.32 - Step 4: Simplify right side
621,677.24x = 300,051,147,650.94 - Step 5: Solve for x
x = 300,051,147,650.94/621,677.24 - Step 6: Final answer
x = 482,647.79
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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.