Finding the Fourth Proportional to 798,420.44, 1,101,812.64 and 492,374.48
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Solution
The fourth proportional to 798,420.44, 1,101,812.64 and 492,374.48 is: 679,472.12
Step by Step Solution
- Step 1: Write the proportion equation
798,420.44 : 1,101,812.64 = 492,374.48 : x - Step 2: Convert to fraction form
798,420.44/1,101,812.64 = 492,374.48/x - Step 3: Cross multiply
798,420.44x = 1,101,812.64 × 492,374.48 - Step 4: Simplify right side
798,420.44x = 542,504,425,677.43 - Step 5: Solve for x
x = 542,504,425,677.43/798,420.44 - Step 6: Final answer
x = 679,472.12
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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.