Finding the Fourth Proportional to 378,779.57, 522,726.92 and 206,708.63
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Solution
The fourth proportional to 378,779.57, 522,726.92 and 206,708.63 is: 285,263.98
Step by Step Solution
- Step 1: Write the proportion equation
378,779.57 : 522,726.92 = 206,708.63 : x - Step 2: Convert to fraction form
378,779.57/522,726.92 = 206,708.63/x - Step 3: Cross multiply
378,779.57x = 522,726.92 × 206,708.63 - Step 4: Simplify right side
378,779.57x = 108,052,167,035.81 - Step 5: Solve for x
x = 108,052,167,035.81/378,779.57 - Step 6: Final answer
x = 285,263.98
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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.