Finding the Fourth Proportional to 626,431.09, 864,481.25 and 339,953.65
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Solution
The fourth proportional to 626,431.09, 864,481.25 and 339,953.65 is: 469,139.48
Step by Step Solution
- Step 1: Write the proportion equation
626,431.09 : 864,481.25 = 339,953.65 : x - Step 2: Convert to fraction form
626,431.09/864,481.25 = 339,953.65/x - Step 3: Cross multiply
626,431.09x = 864,481.25 × 339,953.65 - Step 4: Simplify right side
626,431.09x = 293,883,554,594.29 - Step 5: Solve for x
x = 293,883,554,594.29/626,431.09 - Step 6: Final answer
x = 469,139.48
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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.