Finding the Fourth Proportional to 1,742,745.15, 2,611,890.99 and 1,405,944.63
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Solution
The fourth proportional to 1,742,745.15, 2,611,890.99 and 1,405,944.63 is: 2,107,120.55
Step by Step Solution
- Step 1: Write the proportion equation
1,742,745.15 : 2,611,890.99 = 1,405,944.63 : x - Step 2: Convert to fraction form
1,742,745.15/2,611,890.99 = 1,405,944.63/x - Step 3: Cross multiply
1,742,745.15x = 2,611,890.99 × 1,405,944.63 - Step 4: Simplify right side
1,742,745.15x = 3,672,174,111,535.88 - Step 5: Solve for x
x = 3,672,174,111,535.88/1,742,745.15 - Step 6: Final answer
x = 2,107,120.55
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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.