Finding the Fourth Proportional to 538,572.36, 743,229.90 and 312,349.08
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Solution
The fourth proportional to 538,572.36, 743,229.90 and 312,349.08 is: 431,041.76
Step by Step Solution
- Step 1: Write the proportion equation
538,572.36 : 743,229.90 = 312,349.08 : x - Step 2: Convert to fraction form
538,572.36/743,229.90 = 312,349.08/x - Step 3: Cross multiply
538,572.36x = 743,229.90 × 312,349.08 - Step 4: Simplify right side
538,572.36x = 232,147,175,493.49 - Step 5: Solve for x
x = 232,147,175,493.49/538,572.36 - Step 6: Final answer
x = 431,041.76
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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.