Finding the Fourth Proportional to 812,468.01, 1,121,192.15 and 449,884.08
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Solution
The fourth proportional to 812,468.01, 1,121,192.15 and 449,884.08 is: 620,832.44
Step by Step Solution
- Step 1: Write the proportion equation
812,468.01 : 1,121,192.15 = 449,884.08 : x - Step 2: Convert to fraction form
812,468.01/1,121,192.15 = 449,884.08/x - Step 3: Cross multiply
812,468.01x = 1,121,192.15 × 449,884.08 - Step 4: Simplify right side
812,468.01x = 504,406,493,300.01 - Step 5: Solve for x
x = 504,406,493,300.01/812,468.01 - Step 6: Final answer
x = 620,832.44
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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.