Finding the Fourth Proportional to 813,686.18, 1,122,922.44 and 451,086.98
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Solution
The fourth proportional to 813,686.18, 1,122,922.44 and 451,086.98 is: 622,519.72
Step by Step Solution
- Step 1: Write the proportion equation
813,686.18 : 1,122,922.44 = 451,086.98 : x - Step 2: Convert to fraction form
813,686.18/1,122,922.44 = 451,086.98/x - Step 3: Cross multiply
813,686.18x = 1,122,922.44 × 451,086.98 - Step 4: Simplify right side
813,686.18x = 506,535,686,619.22 - Step 5: Solve for x
x = 506,535,686,619.22/813,686.18 - Step 6: Final answer
x = 622,519.72
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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.