Finding the Fourth Proportional to 538,642.18, 743,321.08 and 293,626.90
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Solution
The fourth proportional to 538,642.18, 743,321.08 and 293,626.90 is: 405,202.33
Step by Step Solution
- Step 1: Write the proportion equation
538,642.18 : 743,321.08 = 293,626.90 : x - Step 2: Convert to fraction form
538,642.18/743,321.08 = 293,626.90/x - Step 3: Cross multiply
538,642.18x = 743,321.08 × 293,626.90 - Step 4: Simplify right side
538,642.18x = 218,259,064,425.05 - Step 5: Solve for x
x = 218,259,064,425.05/538,642.18 - Step 6: Final answer
x = 405,202.33
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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.