Finding the Fourth Proportional to 1,485,789.38, 2,228,575.07 and 474,639.80
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Solution
The fourth proportional to 1,485,789.38, 2,228,575.07 and 474,639.80 is: 711,924.88
Step by Step Solution
- Step 1: Write the proportion equation
1,485,789.38 : 2,228,575.07 = 474,639.80 : x - Step 2: Convert to fraction form
1,485,789.38/2,228,575.07 = 474,639.80/x - Step 3: Cross multiply
1,485,789.38x = 2,228,575.07 × 474,639.80 - Step 4: Simplify right side
1,485,789.38x = 1,057,770,428,089.24 - Step 5: Solve for x
x = 1,057,770,428,089.24/1,485,789.38 - Step 6: Final answer
x = 711,924.88
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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.