Finding the Fourth Proportional to 1,832,111.85, 2,529,624.70 and 1,221,703.75
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Solution
The fourth proportional to 1,832,111.85, 2,529,624.70 and 1,221,703.75 is: 1,686,824.95
Step by Step Solution
- Step 1: Write the proportion equation
1,832,111.85 : 2,529,624.70 = 1,221,703.75 : x - Step 2: Convert to fraction form
1,832,111.85/2,529,624.70 = 1,221,703.75/x - Step 3: Cross multiply
1,832,111.85x = 2,529,624.70 × 1,221,703.75 - Step 4: Simplify right side
1,832,111.85x = 3,090,451,982,082.63 - Step 5: Solve for x
x = 3,090,451,982,082.63/1,832,111.85 - Step 6: Final answer
x = 1,686,824.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.