Finding the Fourth Proportional to 709,716.60, 1,064,983.14 and 394,147.08
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Solution
The fourth proportional to 709,716.60, 1,064,983.14 and 394,147.08 is: 591,447.34
Step by Step Solution
- Step 1: Write the proportion equation
709,716.60 : 1,064,983.14 = 394,147.08 : x - Step 2: Convert to fraction form
709,716.60/1,064,983.14 = 394,147.08/x - Step 3: Cross multiply
709,716.60x = 1,064,983.14 × 394,147.08 - Step 4: Simplify right side
709,716.60x = 419,759,994,880.23 - Step 5: Solve for x
x = 419,759,994,880.23/709,716.60 - Step 6: Final answer
x = 591,447.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.