Finding the Fourth Proportional to 1,811,961.55, 2,712,028.07 and 1,332,062.21
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Solution
The fourth proportional to 1,811,961.55, 2,712,028.07 and 1,332,062.21 is: 1,993,745.45
Step by Step Solution
- Step 1: Write the proportion equation
1,811,961.55 : 2,712,028.07 = 1,332,062.21 : x - Step 2: Convert to fraction form
1,811,961.55/2,712,028.07 = 1,332,062.21/x - Step 3: Cross multiply
1,811,961.55x = 2,712,028.07 × 1,332,062.21 - Step 4: Simplify right side
1,811,961.55x = 3,612,590,104,506.23 - Step 5: Solve for x
x = 3,612,590,104,506.23/1,811,961.55 - Step 6: Final answer
x = 1,993,745.45
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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.