Finding the Fourth Proportional to 766,315.37, 1,057,515.21 and 426,783.62
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Solution
The fourth proportional to 766,315.37, 1,057,515.21 and 426,783.62 is: 588,961.39
Step by Step Solution
- Step 1: Write the proportion equation
766,315.37 : 1,057,515.21 = 426,783.62 : x - Step 2: Convert to fraction form
766,315.37/1,057,515.21 = 426,783.62/x - Step 3: Cross multiply
766,315.37x = 1,057,515.21 × 426,783.62 - Step 4: Simplify right side
766,315.37x = 451,330,164,241.28 - Step 5: Solve for x
x = 451,330,164,241.28/766,315.37 - Step 6: Final answer
x = 588,961.39
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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.