Finding the Fourth Proportional to 1,089,415.18, 1,503,249.87 and 605,884.06
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Solution
The fourth proportional to 1,089,415.18, 1,503,249.87 and 605,884.06 is: 836,040.43
Step by Step Solution
- Step 1: Write the proportion equation
1,089,415.18 : 1,503,249.87 = 605,884.06 : x - Step 2: Convert to fraction form
1,089,415.18/1,503,249.87 = 605,884.06/x - Step 3: Cross multiply
1,089,415.18x = 1,503,249.87 × 605,884.06 - Step 4: Simplify right side
1,089,415.18x = 910,795,134,430.07 - Step 5: Solve for x
x = 910,795,134,430.07/1,089,415.18 - Step 6: Final answer
x = 836,040.43
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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.