Finding the Fourth Proportional to 551,716.48, 761,383.98 and 388,424.92
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Solution
The fourth proportional to 551,716.48, 761,383.98 and 388,424.92 is: 536,037.12
Step by Step Solution
- Step 1: Write the proportion equation
551,716.48 : 761,383.98 = 388,424.92 : x - Step 2: Convert to fraction form
551,716.48/761,383.98 = 388,424.92/x - Step 3: Cross multiply
551,716.48x = 761,383.98 × 388,424.92 - Step 4: Simplify right side
551,716.48x = 295,740,511,520.78 - Step 5: Solve for x
x = 295,740,511,520.78/551,716.48 - Step 6: Final answer
x = 536,037.12
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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.