Finding the Fourth Proportional to 497,456.36, 686,405.73 and 279,636.05
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Solution
The fourth proportional to 497,456.36, 686,405.73 and 279,636.05 is: 385,850.50
Step by Step Solution
- Step 1: Write the proportion equation
497,456.36 : 686,405.73 = 279,636.05 : x - Step 2: Convert to fraction form
497,456.36/686,405.73 = 279,636.05/x - Step 3: Cross multiply
497,456.36x = 686,405.73 × 279,636.05 - Step 4: Simplify right side
497,456.36x = 191,943,787,034.57 - Step 5: Solve for x
x = 191,943,787,034.57/497,456.36 - Step 6: Final answer
x = 385,850.50
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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.