Finding the Fourth Proportional to 916,361.01, 1,374,720.65 and 276,716.81
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Solution
The fourth proportional to 916,361.01, 1,374,720.65 and 276,716.81 is: 415,129.31
Step by Step Solution
- Step 1: Write the proportion equation
916,361.01 : 1,374,720.65 = 276,716.81 : x - Step 2: Convert to fraction form
916,361.01/1,374,720.65 = 276,716.81/x - Step 3: Cross multiply
916,361.01x = 1,374,720.65 × 276,716.81 - Step 4: Simplify right side
916,361.01x = 380,408,312,909.13 - Step 5: Solve for x
x = 380,408,312,909.13/916,361.01 - Step 6: Final answer
x = 415,129.31
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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.