Finding the Fourth Proportional to 1,221,375.40, 1,831,177.36 and 821,023.18
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Solution
The fourth proportional to 1,221,375.40, 1,831,177.36 and 821,023.18 is: 1,230,939.36
Step by Step Solution
- Step 1: Write the proportion equation
1,221,375.40 : 1,831,177.36 = 821,023.18 : x - Step 2: Convert to fraction form
1,221,375.40/1,831,177.36 = 821,023.18/x - Step 3: Cross multiply
1,221,375.40x = 1,831,177.36 × 821,023.18 - Step 4: Simplify right side
1,221,375.40x = 1,503,439,059,251.21 - Step 5: Solve for x
x = 1,503,439,059,251.21/1,221,375.40 - Step 6: Final answer
x = 1,230,939.36
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.