Finding the Fourth Proportional to 1,251,779.46, 1,727,456.58 and 678,819.48
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Solution
The fourth proportional to 1,251,779.46, 1,727,456.58 and 678,819.48 is: 936,771.38
Step by Step Solution
- Step 1: Write the proportion equation
1,251,779.46 : 1,727,456.58 = 678,819.48 : x - Step 2: Convert to fraction form
1,251,779.46/1,727,456.58 = 678,819.48/x - Step 3: Cross multiply
1,251,779.46x = 1,727,456.58 × 678,819.48 - Step 4: Simplify right side
1,251,779.46x = 1,172,631,177,358.18 - Step 5: Solve for x
x = 1,172,631,177,358.18/1,251,779.46 - Step 6: Final answer
x = 936,771.38
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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.