Finding the Fourth Proportional to 1,977,412.68, 2,728,850.99 and 1,161,650.75
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Solution
The fourth proportional to 1,977,412.68, 2,728,850.99 and 1,161,650.75 is: 1,603,090.65
Step by Step Solution
- Step 1: Write the proportion equation
1,977,412.68 : 2,728,850.99 = 1,161,650.75 : x - Step 2: Convert to fraction form
1,977,412.68/2,728,850.99 = 1,161,650.75/x - Step 3: Cross multiply
1,977,412.68x = 2,728,850.99 × 1,161,650.75 - Step 4: Simplify right side
1,977,412.68x = 3,169,971,779,719.23 - Step 5: Solve for x
x = 3,169,971,779,719.23/1,977,412.68 - Step 6: Final answer
x = 1,603,090.65
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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.