Finding the Fourth Proportional to 1,420,165.66, 2,126,193.45 and 1,082,813.98
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Solution
The fourth proportional to 1,420,165.66, 2,126,193.45 and 1,082,813.98 is: 1,621,129.18
Step by Step Solution
- Step 1: Write the proportion equation
1,420,165.66 : 2,126,193.45 = 1,082,813.98 : x - Step 2: Convert to fraction form
1,420,165.66/2,126,193.45 = 1,082,813.98/x - Step 3: Cross multiply
1,420,165.66x = 2,126,193.45 × 1,082,813.98 - Step 4: Simplify right side
1,420,165.66x = 2,302,271,991,844.43 - Step 5: Solve for x
x = 2,302,271,991,844.43/1,420,165.66 - Step 6: Final answer
x = 1,621,129.18
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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.