Finding the Fourth Proportional to 1,419,289.90, 1,958,327.68 and 815,561.26
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Solution
The fourth proportional to 1,419,289.90, 1,958,327.68 and 815,561.26 is: 1,125,306.53
Step by Step Solution
- Step 1: Write the proportion equation
1,419,289.90 : 1,958,327.68 = 815,561.26 : x - Step 2: Convert to fraction form
1,419,289.90/1,958,327.68 = 815,561.26/x - Step 3: Cross multiply
1,419,289.90x = 1,958,327.68 × 815,561.26 - Step 4: Simplify right side
1,419,289.90x = 1,597,136,190,193.68 - Step 5: Solve for x
x = 1,597,136,190,193.68/1,419,289.90 - Step 6: Final answer
x = 1,125,306.53
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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.