Finding the Fourth Proportional to 813,570.56, 1,122,673.92 and 455,805.44
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Solution
The fourth proportional to 813,570.56, 1,122,673.92 and 455,805.44 is: 628,981.56
Step by Step Solution
- Step 1: Write the proportion equation
813,570.56 : 1,122,673.92 = 455,805.44 : x - Step 2: Convert to fraction form
813,570.56/1,122,673.92 = 455,805.44/x - Step 3: Cross multiply
813,570.56x = 1,122,673.92 × 455,805.44 - Step 4: Simplify right side
813,570.56x = 511,720,880,082.13 - Step 5: Solve for x
x = 511,720,880,082.13/813,570.56 - Step 6: Final answer
x = 628,981.56
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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.