Finding the Fourth Proportional to 964,749.96, 1,331,964.81 and 620,745.84
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Solution
The fourth proportional to 964,749.96, 1,331,964.81 and 620,745.84 is: 857,021.66
Step by Step Solution
- Step 1: Write the proportion equation
964,749.96 : 1,331,964.81 = 620,745.84 : x - Step 2: Convert to fraction form
964,749.96/1,331,964.81 = 620,745.84/x - Step 3: Cross multiply
964,749.96x = 1,331,964.81 × 620,745.84 - Step 4: Simplify right side
964,749.96x = 826,811,614,833.89 - Step 5: Solve for x
x = 826,811,614,833.89/964,749.96 - Step 6: Final answer
x = 857,021.66
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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.