Finding the Fourth Proportional to 816,986.24, 1,126,649.41 and 545,065.19
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Solution
The fourth proportional to 816,986.24, 1,126,649.41 and 545,065.19 is: 751,661.83
Step by Step Solution
- Step 1: Write the proportion equation
816,986.24 : 1,126,649.41 = 545,065.19 : x - Step 2: Convert to fraction form
816,986.24/1,126,649.41 = 545,065.19/x - Step 3: Cross multiply
816,986.24x = 1,126,649.41 × 545,065.19 - Step 4: Simplify right side
816,986.24x = 614,097,367,729.13 - Step 5: Solve for x
x = 614,097,367,729.13/816,986.24 - Step 6: Final answer
x = 751,661.83
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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.