Finding the Fourth Proportional to 813,447.28, 1,122,624.39 and 450,984.84
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Solution
The fourth proportional to 813,447.28, 1,122,624.39 and 450,984.84 is: 622,396.30
Step by Step Solution
- Step 1: Write the proportion equation
813,447.28 : 1,122,624.39 = 450,984.84 : x - Step 2: Convert to fraction form
813,447.28/1,122,624.39 = 450,984.84/x - Step 3: Cross multiply
813,447.28x = 1,122,624.39 × 450,984.84 - Step 4: Simplify right side
813,447.28x = 506,286,580,904.25 - Step 5: Solve for x
x = 506,286,580,904.25/813,447.28 - Step 6: Final answer
x = 622,396.30
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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.