Finding the Fourth Proportional to 1,872,742.80, 2,809,114.20 and 1,022,437.20
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Solution
The fourth proportional to 1,872,742.80, 2,809,114.20 and 1,022,437.20 is: 1,533,655.80
Step by Step Solution
- Step 1: Write the proportion equation
1,872,742.80 : 2,809,114.20 = 1,022,437.20 : x - Step 2: Convert to fraction form
1,872,742.80/2,809,114.20 = 1,022,437.20/x - Step 3: Cross multiply
1,872,742.80x = 2,809,114.20 × 1,022,437.20 - Step 4: Simplify right side
1,872,742.80x = 2,872,142,857,128.24 - Step 5: Solve for x
x = 2,872,142,857,128.24/1,872,742.80 - Step 6: Final answer
x = 1,533,655.80
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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.