Finding the Fourth Proportional to 693,163.44, 956,457.72 and 391,350.96
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Solution
The fourth proportional to 693,163.44, 956,457.72 and 391,350.96 is: 540,003.45
Step by Step Solution
- Step 1: Write the proportion equation
693,163.44 : 956,457.72 = 391,350.96 : x - Step 2: Convert to fraction form
693,163.44/956,457.72 = 391,350.96/x - Step 3: Cross multiply
693,163.44x = 956,457.72 × 391,350.96 - Step 4: Simplify right side
693,163.44x = 374,310,646,921.41 - Step 5: Solve for x
x = 374,310,646,921.41/693,163.44 - Step 6: Final answer
x = 540,003.45
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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.