Finding the Fourth Proportional to 813,492.84, 1,122,240.42 and 511,853.16
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Solution
The fourth proportional to 813,492.84, 1,122,240.42 and 511,853.16 is: 706,118.45
Step by Step Solution
- Step 1: Write the proportion equation
813,492.84 : 1,122,240.42 = 511,853.16 : x - Step 2: Convert to fraction form
813,492.84/1,122,240.42 = 511,853.16/x - Step 3: Cross multiply
813,492.84x = 1,122,240.42 × 511,853.16 - Step 4: Simplify right side
813,492.84x = 574,422,305,256.73 - Step 5: Solve for x
x = 574,422,305,256.73/813,492.84 - Step 6: Final answer
x = 706,118.45
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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.