Finding the Fourth Proportional to 985,343.25, 1,477,358.57 and 354,175.05
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Solution
The fourth proportional to 985,343.25, 1,477,358.57 and 354,175.05 is: 531,026.66
Step by Step Solution
- Step 1: Write the proportion equation
985,343.25 : 1,477,358.57 = 354,175.05 : x - Step 2: Convert to fraction form
985,343.25/1,477,358.57 = 354,175.05/x - Step 3: Cross multiply
985,343.25x = 1,477,358.57 × 354,175.05 - Step 4: Simplify right side
985,343.25x = 523,243,536,240.01 - Step 5: Solve for x
x = 523,243,536,240.01/985,343.25 - Step 6: Final answer
x = 531,026.66
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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.