Finding the Fourth Proportional to 1,089,212.21, 1,503,132.17 and 605,777.55
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Solution
The fourth proportional to 1,089,212.21, 1,503,132.17 and 605,777.55 is: 835,983.76
Step by Step Solution
- Step 1: Write the proportion equation
1,089,212.21 : 1,503,132.17 = 605,777.55 : x - Step 2: Convert to fraction form
1,089,212.21/1,503,132.17 = 605,777.55/x - Step 3: Cross multiply
1,089,212.21x = 1,503,132.17 × 605,777.55 - Step 4: Simplify right side
1,089,212.21x = 910,563,723,268.78 - Step 5: Solve for x
x = 910,563,723,268.78/1,089,212.21 - Step 6: Final answer
x = 835,983.76
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1.5x scale
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.