Finding the Fourth Proportional to 1,089,390.75, 1,503,359.24 and 612,462.75
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Solution
The fourth proportional to 1,089,390.75, 1,503,359.24 and 612,462.75 is: 845,198.60
Step by Step Solution
- Step 1: Write the proportion equation
1,089,390.75 : 1,503,359.24 = 612,462.75 : x - Step 2: Convert to fraction form
1,089,390.75/1,503,359.24 = 612,462.75/x - Step 3: Cross multiply
1,089,390.75x = 1,503,359.24 × 612,462.75 - Step 4: Simplify right side
1,089,390.75x = 920,751,534,368.31 - Step 5: Solve for x
x = 920,751,534,368.31/1,089,390.75 - Step 6: Final answer
x = 845,198.60
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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.