Finding the Fourth Proportional to 813,236.25, 1,122,268.65 and 450,666.08
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Solution
The fourth proportional to 813,236.25, 1,122,268.65 and 450,666.08 is: 621,920.64
Step by Step Solution
- Step 1: Write the proportion equation
813,236.25 : 1,122,268.65 = 450,666.08 : x - Step 2: Convert to fraction form
813,236.25/1,122,268.65 = 450,666.08/x - Step 3: Cross multiply
813,236.25x = 1,122,268.65 × 450,666.08 - Step 4: Simplify right side
813,236.25x = 505,768,407,591.05 - Step 5: Solve for x
x = 505,768,407,591.05/813,236.25 - Step 6: Final answer
x = 621,920.64
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1.5x scale
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.