Finding the Fourth Proportional to 813,832.94, 1,123,102.94 and 451,272.08
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Solution
The fourth proportional to 813,832.94, 1,123,102.94 and 451,272.08 is: 622,762.95
Step by Step Solution
- Step 1: Write the proportion equation
813,832.94 : 1,123,102.94 = 451,272.08 : x - Step 2: Convert to fraction form
813,832.94/1,123,102.94 = 451,272.08/x - Step 3: Cross multiply
813,832.94x = 1,123,102.94 × 451,272.08 - Step 4: Simplify right side
813,832.94x = 506,825,000,339.31 - Step 5: Solve for x
x = 506,825,000,339.31/813,832.94 - Step 6: Final answer
x = 622,762.95
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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.