Finding the Fourth Proportional to 790,851.43, 1,091,369.55 and 428,266.99
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Solution
The fourth proportional to 790,851.43, 1,091,369.55 and 428,266.99 is: 591,005.51
Step by Step Solution
- Step 1: Write the proportion equation
790,851.43 : 1,091,369.55 = 428,266.99 : x - Step 2: Convert to fraction form
790,851.43/1,091,369.55 = 428,266.99/x - Step 3: Cross multiply
790,851.43x = 1,091,369.55 × 428,266.99 - Step 4: Simplify right side
790,851.43x = 467,397,552,156.16 - Step 5: Solve for x
x = 467,397,552,156.16/790,851.43 - Step 6: Final answer
x = 591,005.51
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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.