Finding the Fourth Proportional to 538,173.10, 742,657.98 and 323,431.30
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Solution
The fourth proportional to 538,173.10, 742,657.98 and 323,431.30 is: 446,322.63
Step by Step Solution
- Step 1: Write the proportion equation
538,173.10 : 742,657.98 = 323,431.30 : x - Step 2: Convert to fraction form
538,173.10/742,657.98 = 323,431.30/x - Step 3: Cross multiply
538,173.10x = 742,657.98 × 323,431.30 - Step 4: Simplify right side
538,173.10x = 240,198,835,926.77 - Step 5: Solve for x
x = 240,198,835,926.77/538,173.10 - Step 6: Final answer
x = 446,322.63
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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.