Finding the Fourth Proportional to 626,400.74, 864,435.34 and 339,920.75
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Solution
The fourth proportional to 626,400.74, 864,435.34 and 339,920.75 is: 469,091.90
Step by Step Solution
- Step 1: Write the proportion equation
626,400.74 : 864,435.34 = 339,920.75 : x - Step 2: Convert to fraction form
626,400.74/864,435.34 = 339,920.75/x - Step 3: Cross multiply
626,400.74x = 864,435.34 × 339,920.75 - Step 4: Simplify right side
626,400.74x = 293,839,511,685.29 - Step 5: Solve for x
x = 293,839,511,685.29/626,400.74 - Step 6: Final answer
x = 469,091.90
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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.