Finding the Fourth Proportional to 992,998.90, 1,489,090.11 and 393,877.54
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Solution
The fourth proportional to 992,998.90, 1,489,090.11 and 393,877.54 is: 590,654.38
Step by Step Solution
- Step 1: Write the proportion equation
992,998.90 : 1,489,090.11 = 393,877.54 : x - Step 2: Convert to fraction form
992,998.90/1,489,090.11 = 393,877.54/x - Step 3: Cross multiply
992,998.90x = 1,489,090.11 × 393,877.54 - Step 4: Simplify right side
992,998.90x = 586,519,149,365.13 - Step 5: Solve for x
x = 586,519,149,365.13/992,998.90 - Step 6: Final answer
x = 590,654.38
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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.