Finding the Fourth Proportional to 813,035.37, 1,121,997.84 and 450,464.94
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Solution
The fourth proportional to 813,035.37, 1,121,997.84 and 450,464.94 is: 621,646.62
Step by Step Solution
- Step 1: Write the proportion equation
813,035.37 : 1,121,997.84 = 450,464.94 : x - Step 2: Convert to fraction form
813,035.37/1,121,997.84 = 450,464.94/x - Step 3: Cross multiply
813,035.37x = 1,121,997.84 × 450,464.94 - Step 4: Simplify right side
813,035.37x = 505,420,687,423.41 - Step 5: Solve for x
x = 505,420,687,423.41/813,035.37 - Step 6: Final answer
x = 621,646.62
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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.