Finding the Fourth Proportional to 720,544.74, 994,355.65 and 393,858.19
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Solution
The fourth proportional to 720,544.74, 994,355.65 and 393,858.19 is: 543,526.43
Step by Step Solution
- Step 1: Write the proportion equation
720,544.74 : 994,355.65 = 393,858.19 : x - Step 2: Convert to fraction form
720,544.74/994,355.65 = 393,858.19/x - Step 3: Cross multiply
720,544.74x = 994,355.65 × 393,858.19 - Step 4: Simplify right side
720,544.74x = 391,635,110,451.84 - Step 5: Solve for x
x = 391,635,110,451.84/720,544.74 - Step 6: Final answer
x = 543,526.43
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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.