Finding the Fourth Proportional to 813,255.57, 1,122,278.99 and 450,678.69
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Solution
The fourth proportional to 813,255.57, 1,122,278.99 and 450,678.69 is: 621,929.00
Step by Step Solution
- Step 1: Write the proportion equation
813,255.57 : 1,122,278.99 = 450,678.69 : x - Step 2: Convert to fraction form
813,255.57/1,122,278.99 = 450,678.69/x - Step 3: Cross multiply
813,255.57x = 1,122,278.99 × 450,678.69 - Step 4: Simplify right side
813,255.57x = 505,787,222,774.33 - Step 5: Solve for x
x = 505,787,222,774.33/813,255.57 - Step 6: Final answer
x = 621,929.00
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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.