Finding the Fourth Proportional to 1,603,562.79, 2,405,787.09 and 1,427,301.54
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Solution
The fourth proportional to 1,603,562.79, 2,405,787.09 and 1,427,301.54 is: 2,141,346.53
Step by Step Solution
- Step 1: Write the proportion equation
1,603,562.79 : 2,405,787.09 = 1,427,301.54 : x - Step 2: Convert to fraction form
1,603,562.79/2,405,787.09 = 1,427,301.54/x - Step 3: Cross multiply
1,603,562.79x = 2,405,787.09 × 1,427,301.54 - Step 4: Simplify right side
1,603,562.79x = 3,433,783,618,469.12 - Step 5: Solve for x
x = 3,433,783,618,469.12/1,603,562.79 - Step 6: Final answer
x = 2,141,346.53
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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.