Finding the Fourth Proportional to 899,349.36, 1,241,105.37 and 491,451.21
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Solution
The fourth proportional to 899,349.36, 1,241,105.37 and 491,451.21 is: 678,204.45
Step by Step Solution
- Step 1: Write the proportion equation
899,349.36 : 1,241,105.37 = 491,451.21 : x - Step 2: Convert to fraction form
899,349.36/1,241,105.37 = 491,451.21/x - Step 3: Cross multiply
899,349.36x = 1,241,105.37 × 491,451.21 - Step 4: Simplify right side
899,349.36x = 609,942,735,824.00 - Step 5: Solve for x
x = 609,942,735,824.00/899,349.36 - Step 6: Final answer
x = 678,204.45
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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.