Finding the Fourth Proportional to 813,288.24, 1,122,415.92 and 450,790.56
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Solution
The fourth proportional to 813,288.24, 1,122,415.92 and 450,790.56 is: 622,134.29
Step by Step Solution
- Step 1: Write the proportion equation
813,288.24 : 1,122,415.92 = 450,790.56 : x - Step 2: Convert to fraction form
813,288.24/1,122,415.92 = 450,790.56/x - Step 3: Cross multiply
813,288.24x = 1,122,415.92 × 450,790.56 - Step 4: Simplify right side
813,288.24x = 505,974,501,129.72 - Step 5: Solve for x
x = 505,974,501,129.72/813,288.24 - Step 6: Final answer
x = 622,134.29
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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.