Finding the Fourth Proportional to 1,318,173.08, 1,977,259.62 and 419,610.92
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Solution
The fourth proportional to 1,318,173.08, 1,977,259.62 and 419,610.92 is: 629,416.38
Step by Step Solution
- Step 1: Write the proportion equation
1,318,173.08 : 1,977,259.62 = 419,610.92 : x - Step 2: Convert to fraction form
1,318,173.08/1,977,259.62 = 419,610.92/x - Step 3: Cross multiply
1,318,173.08x = 1,977,259.62 × 419,610.92 - Step 4: Simplify right side
1,318,173.08x = 829,679,728,227.05 - Step 5: Solve for x
x = 829,679,728,227.05/1,318,173.08 - Step 6: Final answer
x = 629,416.38
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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.