Finding the Fourth Proportional to 2,129,331.10, 3,194,903.85 and 1,119,228.70
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Solution
The fourth proportional to 2,129,331.10, 3,194,903.85 and 1,119,228.70 is: 1,679,319.90
Step by Step Solution
- Step 1: Write the proportion equation
2,129,331.10 : 3,194,903.85 = 1,119,228.70 : x - Step 2: Convert to fraction form
2,129,331.10/3,194,903.85 = 1,119,228.70/x - Step 3: Cross multiply
2,129,331.10x = 3,194,903.85 × 1,119,228.70 - Step 4: Simplify right side
2,129,331.10x = 3,575,828,082,660.50 - Step 5: Solve for x
x = 3,575,828,082,660.50/2,129,331.10 - Step 6: Final answer
x = 1,679,319.90
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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.