Finding the Fourth Proportional to 814,811.13, 1,221,939.86 and 282,207.69
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Solution
The fourth proportional to 814,811.13, 1,221,939.86 and 282,207.69 is: 423,215.65
Step by Step Solution
- Step 1: Write the proportion equation
814,811.13 : 1,221,939.86 = 282,207.69 : x - Step 2: Convert to fraction form
814,811.13/1,221,939.86 = 282,207.69/x - Step 3: Cross multiply
814,811.13x = 1,221,939.86 × 282,207.69 - Step 4: Simplify right side
814,811.13x = 344,840,823,798.49 - Step 5: Solve for x
x = 344,840,823,798.49/814,811.13 - Step 6: Final answer
x = 423,215.65
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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.