Finding the Fourth Proportional to 827,112.68, 1,239,786.91 and 471,360.68
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Solution
The fourth proportional to 827,112.68, 1,239,786.91 and 471,360.68 is: 706,538.32
Step by Step Solution
- Step 1: Write the proportion equation
827,112.68 : 1,239,786.91 = 471,360.68 : x - Step 2: Convert to fraction form
827,112.68/1,239,786.91 = 471,360.68/x - Step 3: Cross multiply
827,112.68x = 1,239,786.91 × 471,360.68 - Step 4: Simplify right side
827,112.68x = 584,386,800,952.70 - Step 5: Solve for x
x = 584,386,800,952.70/827,112.68 - Step 6: Final answer
x = 706,538.32
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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.