Finding the Fourth Proportional to 716,851.26, 989,242.74 and 394,554.78
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Solution
The fourth proportional to 716,851.26, 989,242.74 and 394,554.78 is: 544,478.99
Step by Step Solution
- Step 1: Write the proportion equation
716,851.26 : 989,242.74 = 394,554.78 : x - Step 2: Convert to fraction form
716,851.26/989,242.74 = 394,554.78/x - Step 3: Cross multiply
716,851.26x = 989,242.74 × 394,554.78 - Step 4: Simplify right side
716,851.26x = 390,310,451,647.30 - Step 5: Solve for x
x = 390,310,451,647.30/716,851.26 - Step 6: Final answer
x = 544,478.99
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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.